Question

1. When a parallel beam of incident light is reflected as a parallel beam in one direction, this
reflection is known as:
a) Diffuse reflection b) Interference c) Diffraction
d) Regular reflection
2. We see the image of our face when we look into the mirror. It is due to:
a) Interference
b) Diffraction
c) Polarisation d) Reflection
3. The image formed on a cinema screen is an example of:
a) Real Image
b) Virtual Image c) Point Image d) Plane Image
4. The phenomenon due to which left hand side of the object appears as right hand side and vice versa is
called
a) Reflection of light b) Refraction of light c) Lateral inversion
d) None of the above
5. Frosted glass is an example of
a) a reflective material
b) an opaque material
c) a translucent material
d) a transparent material
6. The angle between an incident ray and the plane mirror is 30°.The total angle between the incident ray
and the reflected ray will be:
a) 30°
b) 60°
7. A ray of light strikes the surface of mirror at an angle of 30° with the mirror. The angle of reflection is
a) 30°
b) 60°
c) 45°
d) None
8. An object 20 cm high is placed at a distance of 100 cm from a plane mirror. The size of the image will
be:
a) 20 cm
b) 40 cm
c) 10 cm
d) 100 cm
9. Magnification produced by a plane mirror is
a)-1
b) zero
c) +1
d) infinity
10. A device which works on the reflection of light from two plane mirrors arranged parallel to one another is
a) Electroscope
b) Kaleidoscope c) Periscope
d) Stethoscope
c) 90°
d) 120°​

Answer 1

Answer:

1=DIFFUSE REFLECTION

2=REFLECTION

3=PLANE IMAGE

4=REFLECTION OF LIGHT

5=A TRANSLUCENT MATERICAL

6=60DIGREE

7=60 DIGREE

8=40cm

9=+1

10=stethoscope