Question

1. A spherical mirror and a spherical lens each have a focal length of -10 cm. The mirror
and the lens are likely to be
(a) both concave
(b) both convex
(c) the mirror is concave and the lens is convex
(d) the mirror is convex and the lens is concave

2. If the magnification produced by a lens has a negative value, the image will be
(a) virtual and inverted
(b) virtual and erect
(c) real and erect
(d) real and inverted

3. Magnification produced by a rear-view mirror fitted in vehicles
(a) is less than one
(b) is more than one
(c) is equal to one
(d) can be more than or less than one depending upon the position of the object
in front of it.

4. If the image is formed in front of the mirror, then the image distance will be
(a) positive or negative depending on the size of the object
(b) neither positive nor negative
(c) positive
(d) negative

5. A full-length image of a distant tall building can definitely be seen by using
(a) concave mirror
(b) a convex mirror
(c) a plane mirrors
(d) both concave as well as plane mirror

Answer 1

Answer:

this is your right answer

Answer 2

Explanation:

अफ्रीकन मिरर एंड हिस्टोरिकल लेंस की 6 व फोकल लेंथ ऑफ -10 सेंटीमीटर द मिरर एंड लेंस अनलाइक्ली टू बी