physics spc sandeep sir
physics spc sandeep sir
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An equiconvex lens forms a two times enlarged real image when an object is kept 16 cm from it . The
An equiconvex lens forms a two times enlarged real image when an object is kept 16 cm from it . The lens is cut into two identical plano convex lenses . If the object is again kept 16 cm in front of one these lenses, then find the nature and position of the image formed . ( CBSE Board 2022 )
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Переглядів: 14

Відео

A series RC circuit is connected to an alternating voltage source. Consider two situations: ( a) Wh9:19A series RC circuit is connected to an alternating voltage source. Consider two situations: ( a) Wh
A series RC circuit is connected to an alternating voltage source. Consider two situations: ( a) Wh
Переглядів 1910 годин тому
A series RC circuit is connected to an alternating voltage source. Consider two situations: ( a) When capacitor is air filled. ( b) When capacitor is mica filled. Current through resistor is I and voltage across capacitor is Vc then [ Re AI PMT 2015 ] #aipmt2015 #alternatingcurrent #class12physics #physicsspcsandeepsir #spclasses #aipmtphysics #youtubevideos #neetphysicsmcqs #neetpyqsolution #n...
A ray is incident on a prism of material of refractive index root 2 at point M such that it grazes a6:23A ray is incident on a prism of material of refractive index root 2 at point M such that it grazes a
A ray is incident on a prism of material of refractive index root 2 at point M such that it grazes a
Переглядів 2110 годин тому
A ray is incident on a prism of material of refractive index root 2 at point M such that it grazes along NC alter emerging from the prism as shown in the figure. Find ( i) the critical angle for the prism ( ii ) the angle of refraction at face AB . ( CBSE BOARD 2022 ) #cbseboard2022 #rayopticsclass12 #class12physics #physics #physicsnumericals #physicsspcsandeepsir #spclasses #youtubevideos #nu...
Two prisms ABC ans BCD are arranged as shown in figure. The critical angle for the two prisms with9:11Two prisms ABC ans BCD are arranged as shown in figure. The critical angle for the two prisms with
Two prisms ABC ans BCD are arranged as shown in figure. The critical angle for the two prisms with
Переглядів 2111 годин тому
Two prisms ABC ans BCD are arranged as shown in figure. The critical angle for the two prisms with respect to air are 41.1° and 45 ° respectively. Trace the path of the ray through the combination. [ CBSE 2022 ] #cbseboard2022 #class12physics #rayopticsclass12 #physicsspcsandeepsir #numerical #physics #spclasses #youtubevideos #prismnumerical #physicsbysandeepsir
In an AC circuit an alternating voltage V = 200 root 2 sin 100 t Volt is connected to a capacitor of4:43In an AC circuit an alternating voltage V = 200 root 2 sin 100 t Volt is connected to a capacitor of
In an AC circuit an alternating voltage V = 200 root 2 sin 100 t Volt is connected to a capacitor of
Переглядів 1711 годин тому
In an AC circuit an alternating voltage V = 200 root 2 sin 100 t Volt is connected to a capacitor of capacity 1 microF , the rms value of current in the circuit is [ AIPMT 2011 ] #aipmt2011 #alternatingcurrent #class12physics #physicsspcsandeepsir #spclasses #neetphysics #youtubevideos #neetpyqsolution #neetpyqs #neetphysicsmcqs
A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an AC source, o5:12A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an AC source, o
A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an AC source, o
Переглядів 242 години тому
A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an AC source, of 200 V ,100 Hz is connected across the coil , the current in the coil will be [ AIPMT 2011 ] #aipmt2011 #alternatingcurrent #class12physics #aipmtphysics #physicsspcsandeepsir #spclasses #youtubevideos #neetpyqsolution #neetphysics #neetphysicsmcqs
An arc lamp requires a direct current of 10 A at 80 V to function. If it is connected to a 220 V9:01An arc lamp requires a direct current of 10 A at 80 V to function. If it is connected to a 220 V
An arc lamp requires a direct current of 10 A at 80 V to function. If it is connected to a 220 V
Переглядів 262 години тому
An arc lamp requires a direct current of 10 A at 80 V to function. If it is connected to a 220 V ( rms ), 50 Hz AC supply, the series inductor needed for it to work is close [ JEE Main 2016 ] #jeemain2016 #alternatingcurrent #class12physics #2016 #jeemainpyqs #physicsspcsandeepsir #spclasses #physics #jee #youtubevideos
A 100 ohm resistance and a capacitor of 100 ohm reactance are connected in series across a 220 V sou4:14A 100 ohm resistance and a capacitor of 100 ohm reactance are connected in series across a 220 V sou
A 100 ohm resistance and a capacitor of 100 ohm reactance are connected in series across a 220 V sou
Переглядів 182 години тому
A 100 ohm resistance and a capacitor of 100 ohm reactance are connected in series across a 220 V source . When capacitor is 50 % charged, the peak value of the current I is [ NEET 2016 Phase 2 ] #neet2016 #alternatingcurrent #class12physics #neet #physics #physicsspcsandeepsir #spclasses #neetphysicsmcqs #neetpyqsolution #neetpyqs
A ray of light is incident on a glass prism of refractive index u and refractive angle A . If it jus7:39A ray of light is incident on a glass prism of refractive index u and refractive angle A . If it jus
A ray of light is incident on a glass prism of refractive index u and refractive angle A . If it jus
Переглядів 122 години тому
A ray of light is incident on a glass prism of refractive index u and refractive angle A . If it just suffers total internal reflection at the other face , obtain a relation between the angle of incidence, angle of prism and critical angle. CBSE 2023 #cbseboard2023 #class12physics #rayopticsclass12 #physics #physicsspcsandeepsir #cbseboardphysics #spclasses #youtubevideos #numericals #physicsby...
A hollow conducting sphere of inner radius r1 and outer radius radius has a charge Q on its surface.12:36A hollow conducting sphere of inner radius r1 and outer radius radius has a charge Q on its surface.
A hollow conducting sphere of inner radius r1 and outer radius radius has a charge Q on its surface.
Переглядів 172 години тому
A hollow conducting sphere of inner radius r1 and outer radius radius has a charge Q on its surface. A point charge - q is also placed at the centre of the sphere . ( i) What is the surface charge density on the ( a) inner and ( b ) outer surface of the sphere ? (ii ) Use Gauss's law of electrostatic to obtain the expression for the electric field at a point lying outside the sphere. #cbseboard...
A point charge +Q is placed at the centre O of an uncharged hollow spherical conductor of inner ra17:52A point charge +Q is placed at the centre O of an uncharged hollow spherical conductor of inner ra
A point charge +Q is placed at the centre O of an uncharged hollow spherical conductor of inner ra
Переглядів 242 години тому
A point charge Q is placed at the centre O of an uncharged hollow spherical conductor of inner radius a and outer radius b . Find the following (i) The magnitude and sign of the charge induced on the inner and outer surface of the conducting shell . ( ii) The magnitude of electric field vector at a distance ( a) r= a/2 !and (b ) r = 2b from the centre of the shell . #cbseboardphysics #electricc...
Given a uniform Electric field E = ( 5× 10 ^3 i )N/C . Find the Electric flux of this field through8:38Given a uniform Electric field E = ( 5× 10 ^3 i )N/C . Find the Electric flux of this field through
Given a uniform Electric field E = ( 5× 10 ^3 i )N/C . Find the Electric flux of this field through
Переглядів 192 години тому
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Q25 An electron moving with a velocity vector v = ( 1.0 ×10^7 m/s) i + ( 0.5 ×10^7 m/s ) j enters a15:22Q25 An electron moving with a velocity vector v = ( 1.0 ×10^7 m/s) i + ( 0.5 ×10^7 m/s ) j enters a
Q25 An electron moving with a velocity vector v = ( 1.0 ×10^7 m/s) i + ( 0.5 ×10^7 m/s ) j enters a
Переглядів 544 години тому
Q25 An electron moving with a velocity vector v = ( 1.0 ×10^7 m/s) i ( 0.5 ×10^7 m/s ) j enters a region of uniform magnetic field vector B = ( 0.5 mT ) j . Find the radius of the circular path described by it. While rotating, does the electron trace a linear path too ? if so calculate the linear distance covered by it during the period of one revolution. [ Set 1 code 55/5/1 CBSE board 2024 phy...
Q24 Two long straight parallel wires separated by 20 cm, carry 5A and 10 A current respectively, in6:35Q24 Two long straight parallel wires separated by 20 cm, carry 5A and 10 A current respectively, in
Q24 Two long straight parallel wires separated by 20 cm, carry 5A and 10 A current respectively, in
Переглядів 184 години тому
Q24 Two long straight parallel wires separated by 20 cm, carry 5A and 10 A current respectively, in the same direction. Find the magnitude and direction of the net magnetic field at a point midway between them. [ Set 1 code 55/5/1 CBSE board 2024 physics paper ] #cbseboardexams2024 #set1 #class12physics #cbseboardphysics #physicsspcsandeepsir #spclasses #question24 #youtubevideos #cbseboardpape...
Q24 A metal rod of length 2m is rotated with a frequency 60 rev/s about an axis passing through its13:08Q24 A metal rod of length 2m is rotated with a frequency 60 rev/s about an axis passing through its
Q24 A metal rod of length 2m is rotated with a frequency 60 rev/s about an axis passing through its
Переглядів 304 години тому
Q24 A metal rod of length 2m is rotated with a frequency 60 rev/s about an axis passing through its centre and perpendicular to its length. A uniform magnetic field of 2T perpendicular to its plane of rotation is switched on in the region . Calculate the emf induced between the centre and the end of the rod [ Set 1 Code 55/5/1 CBSE board 2024 physics 12 th ] #cbseboardexams2024 #set1 #class12ph...
A light bulb and an inductor coil are connected to an ac source through a key as shown in the figure4:57A light bulb and an inductor coil are connected to an ac source through a key as shown in the figure
A light bulb and an inductor coil are connected to an ac source through a key as shown in the figure
Переглядів 264 години тому
A light bulb and an inductor coil are connected to an ac source through a key as shown in the figure
A small signal voltage V(t) = Vo sin wt is applied across an ideal capacitor C. NEET 2016 Phase 16:30A small signal voltage V(t) = Vo sin wt is applied across an ideal capacitor C. NEET 2016 Phase 1
A small signal voltage V(t) = Vo sin wt is applied across an ideal capacitor C. NEET 2016 Phase 1
Переглядів 194 години тому
A small signal voltage V(t) = Vo sin wt is applied across an ideal capacitor C. NEET 2016 Phase 1
A 40 micro F capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of the current in th3:19A 40 micro F capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of the current in th
A 40 micro F capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of the current in th
Переглядів 144 години тому
A 40 micro F capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of the current in th
In the given circuit the maximum current can be [ NEET ]5:21In the given circuit the maximum current can be [ NEET ]
In the given circuit the maximum current can be [ NEET ]
Переглядів 624 години тому
In the given circuit the maximum current can be [ NEET ]
Q23 A plane surface , in shape of a square of side 1cm is placed in an electric field vector E = ( 111:22Q23 A plane surface , in shape of a square of side 1cm is placed in an electric field vector E = ( 1
Q23 A plane surface , in shape of a square of side 1cm is placed in an electric field vector E = ( 1
Переглядів 437 годин тому
Q23 A plane surface , in shape of a square of side 1cm is placed in an electric field vector E = ( 1
Q21 The earth revolves around the sun in an orbit of radius 1.5 ×,10 ^11 m with orbital speed 30 km/5:49Q21 The earth revolves around the sun in an orbit of radius 1.5 ×,10 ^11 m with orbital speed 30 km/
Q21 The earth revolves around the sun in an orbit of radius 1.5 ×,10 ^11 m with orbital speed 30 km/
Переглядів 307 годин тому
Q21 The earth revolves around the sun in an orbit of radius 1.5 ×,10 ^11 m with orbital speed 30 km/
Q20 Two energy levels of an electron in hydrogen atom are separated by 2.55 eV. Find the wavelength10:56Q20 Two energy levels of an electron in hydrogen atom are separated by 2.55 eV. Find the wavelength
Q20 Two energy levels of an electron in hydrogen atom are separated by 2.55 eV. Find the wavelength
Переглядів 337 годин тому
Q20 Two energy levels of an electron in hydrogen atom are separated by 2.55 eV. Find the wavelength
Q19 A telescope has an objective lens of focal length 150 cm and an eyepiece of focal length 5 cm .7:28Q19 A telescope has an objective lens of focal length 150 cm and an eyepiece of focal length 5 cm .
Q19 A telescope has an objective lens of focal length 150 cm and an eyepiece of focal length 5 cm .
Переглядів 267 годин тому
Q19 A telescope has an objective lens of focal length 150 cm and an eyepiece of focal length 5 cm .
Alternating current in a circuit is given as I = i1 + i2 cos wt . The mean square value of this c7:35Alternating current in a circuit is given as I = i1 + i2 cos wt . The mean square value of this c
Alternating current in a circuit is given as I = i1 + i2 cos wt . The mean square value of this c
Переглядів 599 годин тому
Alternating current in a circuit is given as I = i1 i2 cos wt . The mean square value of this c
Q17 Four point charges of 1 microC , - 2 microC , 1 microC and - 2 microC are placed at the corners5:34Q17 Four point charges of 1 microC , - 2 microC , 1 microC and - 2 microC are placed at the corners
Q17 Four point charges of 1 microC , - 2 microC , 1 microC and - 2 microC are placed at the corners
Переглядів 189 годин тому
Q17 Four point charges of 1 microC , - 2 microC , 1 microC and - 2 microC are placed at the corners
Q17 Three point charges , 1pC each , are kept at the vertices of an equilateral triangle of side 1012:20Q17 Three point charges , 1pC each , are kept at the vertices of an equilateral triangle of side 10
Q17 Three point charges , 1pC each , are kept at the vertices of an equilateral triangle of side 10
Переглядів 779 годин тому
Q17 Three point charges , 1pC each , are kept at the vertices of an equilateral triangle of side 10
Q31 Two long straight thin wires AB and CD have linear charge densities 10 microC /m and - 20 microC7:54Q31 Two long straight thin wires AB and CD have linear charge densities 10 microC /m and - 20 microC
Q31 Two long straight thin wires AB and CD have linear charge densities 10 microC /m and - 20 microC
Переглядів 609 годин тому
Q31 Two long straight thin wires AB and CD have linear charge densities 10 microC /m and - 20 microC
In the circuit shown in figure, the average power consumed in one cycle is [ NEET ]5:10In the circuit shown in figure, the average power consumed in one cycle is [ NEET ]
In the circuit shown in figure, the average power consumed in one cycle is [ NEET ]
Переглядів 409 годин тому
In the circuit shown in figure, the average power consumed in one cycle is [ NEET ]
Q16 Assertion (A) An alpha particle is moving towards a gold nucleus. The impact parameter is maxim7:50Q16 Assertion (A) An alpha particle is moving towards a gold nucleus. The impact parameter is maxim
Q16 Assertion (A) An alpha particle is moving towards a gold nucleus. The impact parameter is maxim
Переглядів 469 годин тому
Q16 Assertion (A) An alpha particle is moving towards a gold nucleus. The impact parameter is maxim
Q15 Assertion ( A) In a Young's double slit experiment, interference pattern is not observed when t4:45Q15 Assertion ( A) In a Young's double slit experiment, interference pattern is not observed when t
Q15 Assertion ( A) In a Young's double slit experiment, interference pattern is not observed when t
Переглядів 469 годин тому
Q15 Assertion ( A) In a Young's double slit experiment, interference pattern is not observed when t

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