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Two light sources of intensity I0 and 4I0 produce interference pattern on the screen. Two screens are placed parallel to each other as shown in the figure. In screen-1 two small holes are made at a distance
10
Sep
Two light sources of intensity I0 and 4I0 produce interference pattern on the screen. Two screens are placed parallel to each other as shown in the figure. In screen-1 two small holes are made at a distance A Lloyd's mirror of length 5 cm is illuminated with monochromatic light of wavelength lemda = (6000 A) [...]
A prism of refracting angle 30 is coated with a thin film of transparent material of refractive index 2.2 on face AC of the prism. A light ray of wavelength 6600 A is incident on face AB such that
10
Sep
A prism of refracting angle 30 is coated with a thin film of transparent material of refractive index 2.2 on face AC of the prism. A light ray of wavelength 6600 A is incident on face AB such that A prism of refracting angle 30 is coated with a thin film of transparent material of [...]
A point source S emitting light of wavelength 600 nm is placed at a very small height h above a flat reflecting surface AB (see figure). The intensity of the reflected light is 36% of the incident intensity.
10
Sep
A point source S emitting light of wavelength 600 nm is placed at a very small height h above a flat reflecting surface AB (see figure). The intensity of the reflected light is 36% of the incident intensity. A Lloyd's mirror of length 5 cm is illuminated with monochromatic light of wavelength lemda = (6000 [...]
A vessel ABCD of 10 cm width has two small slits S1 and S2 sealed with identical glass plates of equal thickness. The distance between the slits is 0.8 mm. POQ is the line perpendicular to the plane AB
10
Sep
A vessel ABCD of 10 cm width has two small slits S1 and S2 sealed with identical glass plates of equal thickness. The distance between the slits is 0.8 mm. POQ is the line perpendicular to the plane AB A Lloyd's mirror of length 5 cm is illuminated with monochromatic light of wavelength lemda = [...]
A particle starts moving from point (2, 10, 1). Displacement for the particle is 8 i^ – 2j^ + k^. The final coordinates of the particle is
10
Sep
A particle starts moving from point (2, 10, 1). Displacement for the particle is 8 i^ – 2j^ + k^. The final coordinates of the particle is 1). Displacement for the particle is 8 i^ - 2j^ + k^. The final coordinates of the particle is 10 A particle starts moving from point (2 September [...]
The position of a particle moving in the x-y plane at any time t is given by : x=(3t^2−6t) metres; y=(t^2−2t) metres. Select the correct statement.
10
Sep
The position of a particle moving in the x-y plane at any time t is given by : x=(3t^2−6t) metres; y=(t^2−2t) metres. Select the correct statement. The position of a particle moving in the x-y plane at any time t is given by : x=(3t^2−6t) metres; y=(t^2−2t) metres. Select the correct statement. September 10, 2020 [...]
Particle A moves along X-axis with a uniform velocity of magnitude 10 m/s. Particle B moves with uniform velocity 20m/s along a direction making an angle of 60o with the positive direction of X-axis as shown in the figure. The relative velocity of B with respect to that of A is.
10
Sep
Particle A moves along X-axis with a uniform velocity of magnitude 10 m/s. Particle B moves with uniform velocity 20m/s along a direction making an angle of 60o with the positive direction of X-axis as shown in the figure. The relative velocity of B with respect to that of A is. A ball is dropped [...]
A ball is dropped from the top of 80 m high tower. If after 2 s of fall the gravity (g = 10 m/s^2 ) disappears, then time taken to reach ground since the gravity disappeared is
10
Sep
A ball is dropped from the top of 80 m high tower. If after 2 s of fall the gravity (g = 10 m/s^2 ) disappears, then time taken to reach ground since the gravity disappeared is A ball is dropped from the top of 80 m high tower. If after 2 s of fall [...]
A ball released at rest from the top of a tower reaches the ground in 4 secs. The height of the ball from the ground at t=2s of its journey is
10
Sep
A ball released at rest from the top of a tower reaches the ground in 4 secs. The height of the ball from the ground at t=2s of its journey is A ball released at rest from the top of a tower reaches the ground in 4secs. The height of the ball from the ground [...]
A body covers first 1/3 part of its journey with a velocity of 2m/s, next 1/3 part with a velocity of 3m/sand rest of the journey with a velocity 6m/s. The average velocity of the body will be
10
Sep
A body covers first 1/3 part of its journey with a velocity of 2m/s, next 1/3 part with a velocity of 3m/sand rest of the journey with a velocity 6m/s. The average velocity of the body will be A body covers first 1/3 part of its journey with a velocity of 2m/s next 1/3 part [...]