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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.
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.
State laws of reflection.
State the laws of reflection of light.
Define center of curvature of a spherical mirror.
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.
Define reflection of light?
List two differences between real and virtual images.
What is virtual image?