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Physics multiple choice questions (MCQ) on find focal length of mirror that forms an image 6.2 cm behind mirror of an object placed at 26 cm in front of mirror? with options −8.41 cm, −6.58 cm, −7.8 cm and −9.6 cm, image location by spherical formula of mirror quiz for competitive exam prep, viva interview questions with answers key. Free physics study guide to learn image location by spherical formula of mirror quiz to attempt multiple choice questions based test.

MCQ. Find the focal length of the mirror that forms an image 6.2 cm behind the mirror of an object placed at 26 cm in front of the mirror?

1. −6.58 cm
2. −8.41 cm
3. −7.8 cm
4. −9.6 cm

B

MCQ. The lens with a long focal length is

1. thick
2. thin
3. not strongly curved
4. both B and C

D

MCQ. The variation of focal length to form a sharp image on retina is called

1. accommodation
2. aperture
3. retina control
4. sutter

A

MCQ. In concave mirror, the size of image depends upon

1. size of object
2. position of object
3. area covered by object
4. shape of object

B

MCQ. When light travelling in a certain medium falls on the surface of another medium, a part of it turns back in the same medium. This phenomenon is called

1. reflection
2. refraction
3. defraction
4. acoustics

A