Learn geometrical optics MCQs, grade 10 physics test 22, spherical mirrors multiple choice questions and answers. Spherical mirrors revision test has physics worksheets, answer key with choices as 32.5 cm, 35.6 cm, 50.8 cm and 66.7 cm of multiple choice questions (MCQ) with spherical mirrors quiz as an object 20 cm tall is located 14 cm from a concave mirror having focal length 20 cm. height of object is for competitive exam prep, viva interview questions. Free physics study guide to practice spherical mirrors quiz to attempt multiple choice questions based test.

MCQ. An object 20 cm tall is located 14 cm from a concave mirror having focal length 20 cm. height of object is

1. 35.6 cm
2. 32.5 cm
3. 50.8 cm
4. 66.7 cm

D

MCQ. Angle of incidence 45° is greater than critical angle of glass which is

1. 42°
2. 40°
3. 30°
4. 35°

A

MCQ. Lenses form images through

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

B

MCQ. A smooth surface of silver reflects rays of light in

1. many directions
2. one direction
3. two directions
4. no direction

B

MCQ. If power of a convex lens is 5D then at what distance object should be placed from lens so that its real and 2 times larger image is formed?

1. 30 cm
2. 20 cm
3. 15 cm
4. 25 cm

A