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An object is placed at the following distances from a concave mirror of focal length 15 cm.
(i) 10 cm (ii) 20 cm (iii) 30 cm (iv) 40 cm
Which position of the object will produce
(a) Virtual image (b) A diminished real image
(c) An enlarged real image (d) An image of same size.
State laws of reflection.
State the laws of reflection of light.
For two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
(a) Both A and R are true, and R is correct explanation of the assertion.
(b) Both A and R are true, but R is not the correct explanation of the assertion.
(c) A is true, but R is false.
(d) A is false, but R is true.
Assertion: Keeping a point object fixed, if a plane mirror is moved, the image will also move.
Reason: In case of a plane mirror, distance of object and its image is equal from any point on the mirror.
Define center of curvature of a spherical mirror.
For two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
(a) Both A and R are true, and R is correct explanation of the assertion.
(b) Both A and R are true, but R is not the correct explanation of the assertion.
(c) A is true, but R is false.
(d) A is false, but R is true.
Assertion: The size of the mirror affects the nature of the image.
Reason: Small mirrors always form virtual images.
Define reflection of light?
List two differences between real and virtual images.
What is virtual image?