Ray Optics and ...

A point source of light is placed in front of a plane mirror.

A point object is kept in front of a plane mirror. The plane mirror is doing SHM of amplitude 2cm. The plane mirror moves along the x-axis and x-axis is normal to the mirror. The amplitude of the mirror is such that the object is always infront of the mirror. The amplitude of SHM of the image is

A watch shows the time as 3 : 25. What will be the time that appears when seen through a plane mirror ?

If a ray of light is incident on a plane mirror at an angle 60° from the mirror surface, then deviation produced by mirror is

When light is reflected from a mirror a change occurs in its

The images of clouds and trees in water always less bright than in reality

A rays is incident at an angle 38º on a mirror. The angle between normal and reflected ray is

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A point source of light is placed in front of a plane mirror.

Which of the following letters do not surface lateral inversion

An object is initially at a distance of 100 cm from a plane mirror. If the mirror approaches the object at a speed of 5 cm/s. Then after 6 s the distance between the object and its image will be

Two mirrors are placed perpendicular to each other. A ray strikes the first mirror and after reflection from the first mirror it falls on the second mirror. The ray after reflection from second mirror will emerge

A person is in a room whose ceiling and two adjacent walls are mirrors. How many images are formed?

If an object is placed unsymmetrically between two plane mirrors, inclined at the angle of 60⁰, then the total number of images formed is

In image formation from spherical mirrors, only paraxial rays are considered because they

A concave mirror of radius of curvature 20 cm forms image of the sun. The diameter of the sun subtends an angle 1° on the earth. Then the diameter of the image is (in cm)

A convex mirror has a focal length f. A real object, placed at a distance f in front of it from the pole, produces an image at

A convex mirror has a focal length = 20 cm. A convergent beam tending to converge to a point 20 cm behind convex mirror on principal axis falls on it. The image if formed at

An object is placed at a distance u from a concave mirror and its real image is received on a screen placed at a distance of v from the mirror. If f is the focal length of the mirror, then the graph between 1/v versus 1/u is

An infinitely long rod lies along the axis of a concave mirror of focal length f. The near end of the rod is at a distance u > f from the mirror. Its image will have a length

The radius of curvature for a convex lens is 40 cm, for each surface. Its refractive index is 1.5. The focal length will be 

A concave mirror gives an image three times as large as the object placed at a distance of 20 cm from it. For the image to be real, the focal length should be

If an object is 30 cm away from a concave mirror of focal length 15 cm, the image will be

A concave mirror cannot form

The largest distance of the image of a real object from a convex mirror of focal length 20 cm can be

A particle is moving towards a fixed spherical mirror. The image :

A straight line joining the object point and image point is always perpendicular to the mirror

The focal length of spherical mirror is

A virtual image, larger than the object can be produced by

In case of concave mirror, the minimum distance between a real object and its real image is :