Physics question and answers for November 07, 2023
- Q GO0074 5 An object and its real image are located at distances 25 cm and 40 cm respectively from the two principal focii of a convex lens The linear magnification...
- Q A terrestrial telescope is made by introducing an inverting lens of focal length fi The focal length of objective and eyepiece are fo and fe Then the length of the...
- Q Three right angled prisms of refractive indices 2 and 3 are fitted together as shown in the figure If a ray passes through the prisms without suffering any deviation then...
- Q The angle of polarisation for any medium is 60 what will be the criticle angle for this medium at air interface Question Type Single Correct Type 3 2 sin 3...
- Q A man with hypermetropia cannot see objects closer than a distance of 40 cm from the eye The power of the lens required so that he can see objects at...
- Q number of identical equilateral prism are kept in contact as shown in figure If deviation through a single prism is The m are integers If n 2m deviation through n...
- Q The angle of incidence for a ray of light at a refracting surface of a prism is 45 The angle of prism is 60 If the ray suffers minimum deviation...
- Q Two concave mirror of focal length f and f2 are placed facing each other and d distance apart Find the value of dmin If object is placed between the mirrors...
- Q An object moving at a speed of 5 m s towards a concave mirror of focal length f Im is at a distance of 9m The average speed of the...
- Q 14 For the given incident ray as shown in figure the condition of total internal reflection of the will be satisfied if the refractive index of block will be 1...
- Q A thin plano convex lens of refractive index 1 5 is kept such that medium on its convex side is air 1 and on its plane side is a medium...
- Q A point object O is placed at the origin a thin equi convex glass lens refractive index of glass is 1 5 and its focal length in air medium is...
- Q A quarter cylinder of radius R and refractive index 1 5 is placed on two sides of a table A point object P is kept at a distance of mR...
- Q The radius of curvature of the left and right surface of the concave lens are 10 cm and 15 c respectively The radius of curvature of the mirror is 15...
- Q Q 15 4 1 O If i denotes a unit vector along incident light ray a unit vector along refracted ray into a medium of refractive index and n unit...
- Q Calculate the critical angle for glass air interface if a ray of light incident on a glass surface is deviated through 15 when angle of incidence is 45 Sir yahan...
- Q If a luminous object is placed in front of a thick glass mirror several images are formed due to multip reflections The second image formed by the first reflection by...
- Q A ray of light is incident at 50 on the middle of one of the two mirrors arranged at an angle of 60 between them The ray then touches the...
- Q What is the angle of incidence for an equilateral prism of refractive index 3 so that the ray is parallel to the base inside the prism O 30 O 45...
- Q 14 In a compound microscope the focal length of two lenses are 1 5cm and 6 25 cm If an object is placed at 2cm from objective and final image...
- Q 85 Two lenses are placed in contact with each other and the focal length of combination is 80 cm If the focal length of one is 20 cm then the...
- Q 26 A screen is placed 90 cm from an object The image of the object on the screen is formed by a convex lens at two different locations separated by...
- Q In figure a point object O is placed in air A spherical boundary separates two media AB is the principal axis The refractive index above AB is 1 6 and...
- Q A fish rising vertically up towards the surface of water with speed 3 ms and a bird diving vertically downwards with speed velocity of bird with respect to fish is...
- Q A equiconvex lens has a focal length f and power P It is cut into two symmetrical halves by a plane normal to shown in figure i The two pieces...
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