Physics question and answers for November 09, 2023
- Q 16 67 8 sini sinr Refractive index of a glass as light ray passes from air to glass is given by n COGNITIONS experiment i and r were found to...
- Q 13 Assertion when the object moves with a velocity 2 metre per second its image in the plane mirror moves with a velocity of 4 metre pers econd Reason The...
- Q 4 Each angle of a prism is 60 and the refractive index of a monochromatic light is 3 This light is incident at correct angle for minimum deviation The deviation...
- Q If a lens is moved towards the object from a distance of 20 cm to 15 cm the magnification of the image remains the same The focal length of the...
- Q Two parallel beams of light pass through an isosceles prism of refractive index 1 4 as shown in the figure The angle between the two emergent rays is in degree...
- Q 2 A black spot on the surface of a glass sphere of 3 refractive index u 2 opposite position It appears to be at a distance of 10 cm from...
- Q An object of size 3 cm is placed 14 cm in front a convex mirror of focal length 21 cm Size of th image when object is moved farther from...
- Q A point object O is placed in front of a glass rod having a spherical end of radiu of curvature 30 cm The image would be formed at 1 5...
- Q diver looking up through the water sees the outside world contained in a circular horizon The refractive index of water is and the diver s eyes are 15 cm below...
- Q point object in air is in front of the curved surface of a plano convex lens The radius of curvature of the curved surface is 30 cm and the refractive...
- Q 6 A convex lens of focal length 20 cm is placed in front of a plane mirror as shown in the figure 20 cm An object O is placed in...
- Q 0 A ball is dropped from a height of 20 m above the surface of water in a lake The refractive index of water is 4 3 A fish inside...
- Q For a spherical surface of radius of curvatures R separating two media of refractive index and the two principal focal lengths are f and f respectively Which relation is correct...
- Q 25 A light ray is incident on the composite slab as shown in the figure Angle made by the light ray with the normal in medium 3 will be 45...
- Q A converging lens f 13 6 cm is held 7 60 cm in front of a newspaper the print size of which has a height of 1 96 a Find...
- Q 8 A hemispherical portion of the surface of a solid glass sphere of refractive index 1 5 and of radius r is silvered to make the inner side reflecting An...
- Q A telescope consists of two thin lenses of focal lengths 0 3 m and 3 cm respectively It is focussed on Moon which subtends an angle of 0 5 at...
- Q In a double slit experiment the distance between the slits is d The screen is at a distance D from the slits If a bright fringe is formed opposite to...
- Q The rear face of an equiconvex glass lens of focal length 30 cm is silvered so that it behaves like a concave mirror An object is placed at a distance...
- Q If there is a very small air bubble inside a glass sphere 1 5 of radius 10 cm at distance 4 cm below its surface then its apparent depth when...
- Q mass m is ins electric gure with direction in particle uiter Q 29 A light ray in medium RI C 5 3 enters another medium at an angle 30 The...
- Q The power of the lens is 2D What is the focal length and nature of the lens Converging lens of focal length 0 5 m Converging lens of focal length...
- Q A convex lens made of glass with refractive index 2 is placed in a medium of refractive index A parallel beam of light entering the lens Odiverges converges undergoes no...
- Q 5 A compound microscope uses an objective lens of focal length 4cm and eyepiece of focal length 10cm An object is placed 6cm from the objective lens Calculate the maximum...
- Q 2 Rear window of a car has a size of 120 x 45 cm 32 The driver sits at a distance L 2m from the rear window What should be...
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