Physics question and answers for November 06, 2023
- Q Q 3 4 1 00 15 A biconvex lens form a real image of an object placed perpendicular to its principal axis Suppose the radii of curvature of the lens...
- Q What must be the angle of the flint glass prism g By joining prism of two different glasses shown in the figure it is possible to obtain deviation without dispersion...
- Q Q1 In an eye piece field lens and eye lens have focal lengths 7 5cm and 7 3 cm To eliminate spherical aberration distance between them would be O 0...
- Q Q2 Osin 3 4 Otan 4 1 Light travels in two media A and B with speeds 1 8 x 10 ms and 2 4 x 10 ms respectively Then...
- Q 15 A plano convex lens fits exactly into a plano concave lens Their plane surface are parallel to each other If lenses are made of different materials of refractive index...
- Q Monochromatic light rays parallel to x axis strike a convex lens AB If the lens oscillates such that AB tilts upto a small angle 0 in radian on either side...
- Q A system of two glass system as shown in the figure of radius of curvature 50 cm each and respective refractive indices and nous The focal length of the system...
- Q 5 Question No 75 50 Multiple Choice Select 1 out of 4 options for the question below Light is falling on surface S1 S2 S3 as shown in figure 55...
- Q 1 17 22 23 24 25 41 27 28 18 19 20 32 33 34 35 36 37 38 39 40 51 28 29 30 42 43 44 45 46...
- Q A glass sphere 4 of radius 12 cm has a small mark at a distance of 3 cm from its centre Where this mark will appear when it is viewed...
- Q Question No 33 Max Mark s 02 Multiple Choice Select 1 out of 4 options for the question below When a ray of light goes from higher refractive index to...
- Q A plano covex lens when silvered on the plane side behaves like a concave mirror of focal length 60 cm However when silvered on the convex side it behaves like...
- Q Jum 1 2000 2 4000 neet prep sin 7 2 sin 1 sin 3 sin 4 sin 2 A cylindrical solid rod made up of material of refractive index is...
- Q A beam of light is emitted 8 4 cm beneath the surface of a liquid and strikes the air surface 7 2 cm from the point directly above the source...
- Q 142 A fish is a little away below the surface of a lake If the critical angle is 49 then the fish could see things above the water surface within...
- Q 11 Figures a and b show refraction of a ray in air incident at 60 with the normal to a glass air and water air interface respectively Predict the angle...
- Q GEOMETRICAL OPTICS OBJECTIVE PHYSICS A ray of light strikes a plane mirror at an angle of incidence 450 as shown in the figure After through which the mirror should be...
- Q Plane polarised light is passed through a polaroid On viewing through the polariod we find that when the polariod is given one complete rotation about the direction of the light...
- Q A small object is stuck on the surface of a glas sphere u 1 5 of radius 20 cm It is viewed from the diametrically opposite position The position c...
- Q Select one O both near and far points get farther O the near point gets closer while the far point gets farther O the far point gets farther while the...
- Q When you look at a fish in a still stream from the bank the fish appears shallower than it really is due to refraction From directly above it appears Select...
- Q 0 A ray incidents on medium as shown All interfaces are parallel and the total deviation 8 suffered by ray for corresponding angle of incidence 0 Choose CORRECT option options...
- Q 1 5 By drawing a 5 3 pts The diagram below shows a solid glass sphere with refractive index n neat and labeled diagram describe what happens to the incident...
- Q A SI mall piece of wire bent into on L shape with upright and horizontal portions of equal lengths is placed with the horizontal portion along the axis of the...
- Q F 30 0 52 A thin convex lens having focal length 20 cm is cut into two parts 1 mm above the principle axis The lower portion is placed with...
- Q 53 A thin plano convex lens of focal length fis split into two halves one of the halves is shifted along the optical axis The separation between object and image...
- Q An object of height 18 cm is kept at a distance of 50 cm in front of a mirror of focal length 25 cm The mirror forms a real image...
- Q ALLEN 41 An equiconvex thin lens of focal length is cut into two identical pieces alor diameter and pieces are arranged a shown in the given figure The net foc...
- Q ou place an object 15 8 cm in front of a diverging lens which has a focal length with a magnitude of 12 6 cm Determine how far in front...
- Q One face of a biconvex lens of radius R R 30 cm and 1 5 is silvered as shown in the figure The image of a point object placed at...
- Q A convex meniscus lens is made from glass with refractive index n 1 52 If the radius of curvature of the convex surface is 20 cm and that of the...
- Q 2 A diverging lens with magnitude of focal length 25 cm is placed at a distance of 15 cm from a converging lens of magnitude of focal length 20cm A...
- Q Example 9 8 i If f 0 5 m for a glass lens what is the power of the lens ii The radii of curvature of the faces of a...
- Q A convex lens of focal length 15cm produces virtual image whose size is thrice the size of the object 1 Calculate the object and image distance 2 Marks ii Calculate...
- Q Example 4 Suppose while sitting in a parked car you notice a jogger approaching towards you in the side view mirror of R 2 m If the jogger is running...
- Q Position of 4th image of mirror M is 1 2 3 15cm M Question Type Single Correct Type 4 69 cm from M 48 cm from M English 78 cm...
- Q ght Incident normally on one of the faces of a right angled isosceles prism is found to be totally reflected as shown X1 Toucs What is the minimum value of...
- Q An object is placed 30 cm from the reflecting surface in front of a block of glass 10 cm thick having its farther side silvered The final image is formed...
- Q Question 7 An extended fixed object AB is in contact with a convex mirror focal length Im mounted on a stand as shown Now the mirror is given an initial...
- Q angle u angled triangular prism of refractive index n 2 Light undergoes total internal reflection in the prism at the face PR when a has minimum value of 45 The...
- Q A small object is moving towards a plane mirror with velocity V 10 m s and the plane mirror is moving with velocity V 5 m s as shown The...
- Q In a spherical paper weight R 10 cm made of 3 glass of refractive index 2 C 3 2 embedded at a distance 5 cm from its centre What is...
- Q An equiconvex lens of u 1 5 and radius of curvature R 20 cm is placed in front of a convex mirror of radius of curvature 20 cm as shown...
- Q 4 240 360 2 Two mirrorsAB and CD are arranged along two parallel lines The maximum number of images of object O that can be seen by any observer is...
- Q 13 Assertion When a convex lens is placed on a plane mirror image of a pin object can be obtained coinciding with the pin itself Reasoning The location of the...
- Q f 43 For a compound microscope of length L the focal length of objective and eye piece are fo and respectively magnification If D 25 cm then approximate for normal...
- Q As shown in the figure point O is located at a distance 15 cm from the interface of two surfaces Point C denotes the center of curvature of the separating...
- Q A plano convex lens when silvered at its plane surface is equivalent to a concave mirror of focal leng 28 cm When its curved surface is silvered and the plane...
- Q A dentist has a small mirror of focal length 16 mm He views the cavity in the tooth of a patient by holding the mirror at a distance of 8...
- Q A silvered ball of radius r 5 0 cm is so suspended that its centre is h 1 0 m above the floor and so 2 0 m horizontally away...
- Q the reflected ray is rotated by an angle of 40 in cloc direction then the mirror was rotated by a 20 in anti clockwise b 40 in anti clockwise direction...
- Q A denser medium of refractive index 1 5 has a concave surface of radius of curvature 12 cm An object is situated in the denser medium at a distance of...
- Q i A ray of light incident on face AB of an equilateral glass prism shows minimum deviation of 30 Calculate the speed of light through the prism ii Find the...
- Q 0 45 Which one of the following statements is true a An object situated at the principle focus of a concave lens will have its image formed at infinity c...
- Q T 46 In displacement method we use a lens of focal length fand distance between object and screen is 60 cm Possible value for focal length is 1 15 cm...
- Q A ray of light OP passes through a right angled prism as shown in the above diagram a State the angles of incidence at the faces AC and BC b...
- Q 3 At what distance from a convex mirror of focal length 2 5 m should a boy stand so that his image has a height equal to half the original...
- Q A glass plate has a thickness r and refractive index The angle of incidence of a ray from air into the plate is equal to the critical angle for glass...
- Q QLight is incident normally on face AB of a prism as shown in fig A liquid Of refractive index is placed on face AC Of the prism The prism is...
- Q In the setup shown above the refractive index of the prism is A horizontal ray is entering at height h and emerges as horizontal ray at height After two TIR...
- Q Problem 2 Monochromatic light of wavelength 5890 is incident from air on water surface What are the wavelength frequency and speed of a reflected and b refracted light Refractive index...
- Q A deviation of 2 is produced in the yellow ray when prism of crown and flint glass are achromatically combined Taking dispersive powers of crown and flint glass as 0...
- Q There is a prism with retractive index equal to V3 and the refracting angle equal to 30 One of the refracting surfaces of the prism is polished A beam of...
- Q 3 In a particular scene of a science fiction movie a UFO is flying horizontally at a very high altitude with a speed u that is n 1 times of...
- Q 43 A thin prism has different medium on its either side A light ray is incident almost normally on the first face What is the angle of deviation if all...
- Q Define the distance at which the person can read the book without glasses if his glasses power is 3 5 diopters Select one O 50 cm O 28 9 cm...
- Q When focused on a distant object the focal length of your eye s combined cornea and lens is f To focus on a nearby object the focal length of your...
- Q respectively A beaker contains Water and Benzene of refractive indices one above the other If depth of each is 12 cm apparent depth of the bottom of 3 2 the...
- Q The base of a tank is horizontal glass plate 8 cm thick u 1 6 Above this i layer of liquid of thickness 4 5 cm 1 5 and upon...
- Q A ray of light enters a rectangular glass of slab of refractive index 3 at an ang of incidence 600 It travels a distance of 5 cm inside the slab...
- Q A converging beam of rays is incident on a divergin lens Having passed through the lens the ra intersect at a point 15 cm from the lens on th opposite...
- Q A bird looking down vertically into a pond from 12 cm above the surface sees a fish apparently 18 cm below the surface What is the apparent height of bird...
- Q The refractive index of glass is The time taken by a monochromatic light rays 2 to travel a distance d in air is 4s The time taken by the light...
- Q In the diagram an object is placed at distance 20 cm from pole In this condition object and image coincide Radius of curvature of mirror is 25 cm Refractive index...
- Q In the arrangement shown in figure image of light source 0 is obtained at the bottom of beaker containing water Find value of H 3 f 30 cm 36 cm...
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