The magnification for a spherical mirror is given by $m = - v / u$ . Explain why magnification is positive for a convex mirror.

Important Questions on Question Bank 1

EASY

10th CBSE

IMPORTANT

Foundation Science Physics for Class 10>Chapter 7 - Question Bank 1>Question Bank>Q 11

The figure shows the different shapes of the crystalline lens of the eye when looking by turn at two objects at different distances. In which case is the object at a larger distance from the eye?

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EASY

10th CBSE

IMPORTANT

Foundation Science Physics for Class 10>Chapter 7 - Question Bank 1>Question Bank>Q 12

The near point of a man is at

20 cm

and the far point is at infinity. Does he need spectacles? If yes, should he be prescribed convex lenses or concave lenses?

EASY

10th CBSE

IMPORTANT

Foundation Science Physics for Class 10>Chapter 7 - Question Bank 1>Question Bank>Q 13

The ciliary muscles of a person have become weak. What kind of lens does he need to read a newspaper?

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Physics for Class 10>Chapter 7 - Question Bank 1>Question Bank>Q 1

Why is one surface of a mirror silvered? What will happen to the image if the silvering gets scratched at several places?

EASY

10th CBSE

IMPORTANT

Foundation Science Physics for Class 10>Chapter 7 - Question Bank 1>Question Bank>Q 2

Can you capture an image formed by a convex mirror on

a screen

EASY

10th CBSE

IMPORTANT

Foundation Science Physics for Class 10>Chapter 7 - Question Bank 1>Question Bank>Q 2

Can you capture an image formed by a convex mirror on

a camera

EASY

10th CBSE

IMPORTANT

Foundation Science Physics for Class 10>Chapter 7 - Question Bank 1>Question Bank>Q 3

Name two defects of vision that can be corrected with the help of lenses. Name the kind of lens used to correct each of these defects.

EASY

10th CBSE

IMPORTANT

Foundation Science Physics for Class 10>Chapter 7 - Question Bank 1>Question Bank>Q 1

Observe the figure given below. It shows a concave mirror. $F$ is the focus of the mirror, $C$ is its centre of curvature and $A$ is a point object. Draw two rays from $A$ that fall on the mirror and show the paths of these rays after reflection. From this, locate the image of $A$ . Do this as accurately as you can.

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