Question

1. If incident angle is 45° reflected angle is .............(
A. 45°
B. 15°
C. 30°
D. 60°
2. Which is the correct statement ?
A Zi > Zr
B. Zi = Zr
C. Zi < Zr
D. Zi< Zr
3. Soldiers use to observe enemies from a hiding place.
A. Telescope
B. Microscope C. Periscope
D. all the above
4) 7th General Science Study Interchanging of sides in a plane mirror is
called
(
D. none
A. lateral inversion B. diagonal inversion C. a & b
)
5. The surface covering the bulb in headlight in a vehicle is in shape.
A convex
B concave
C. plane
D. none
6. Reflection of light on walls is
A, regular
B. irregular
( )
D. diminishing
C. constant
7. In a mirror, are reversed
A. right, left B. top, bottom
( )
D. none of these
C. A and B
illad​

Answer 1

Answer:

thank for the free score

Answer 2

The answers are

1. 30°
2. Zi=Zr
3. periscope
4. lateral inversion
5. concave
6. regular

Hope it helps❤