Light Worksheet-7

Light Worksheet-7

1. A man looked into a plane mirror and saw the clock as shown in the figure. The time on the clock was

(a)                          (b)

(c)                          (d)

2. An object 0 is placed near a plane mirror as shown in the figure. The observer can see the image of the object O at

(a) P                    (b) Q                   (c) R                    (d) S

3. Which types of lens are used by person suffering from hypermetropia?

(a)                                            (b)

(c)                                                (d)

4. When light falls on matter, it can produce

(a) Magnetic effect only              (b) Chemical effect only

(c) Heating effect only                 (d) None of these

5. Butter paper is an example for _____ object.

(a) Transparent                            (b) Transluscent

(c) Opaque                                    (d) Luminous

Answer Key:

(1)-(a); (2)-(a); (3)-(a); (4)-(c); (5)-(b)