10+2 PHYSICS RAY OPTICS MCQ : QUIZ ON RAY OPTICS PART-2

 

1/12

Which mirror is used in automobile as rear mirror

a. concave

b. plane

c. convex

d. parabolic

2/12

what is the radius of curvature of a plane mirror

a. zero

b. infinity

c. any finite value

d. none of the above

3/12

double convex lens is called

a. convergent

b. divergent

c. none of these

d. both

4/12

Which of the following produce line spectrum

a. sun

b. electric arc

c. sodium flame

d. none of a above

5/12

the least distance of distinct vision is

a. 10 cm

b. 25 cm

c. 100 cm

d. none of the above

Explanation: The least distance of distinct vision is 25 cm

6/12

When viewed in white light, soap bubbles shows color because of

a. Interference

b. refraction

c. diffraction

d. dispersion

7/12

Image of a plane mirror is

a. laterally inverted

b. virtual

c. erect

d. all of the above

Explanation: Image formed by a plane mirror is laterally inverted, virtual and erect

8/12

Refractive index of water w.r.t air is

a. 1.0

b. 1.25

c. 1.33

d. 1.7

9/12

The phenomenon of total internal reflection is possible when the angle of incidence is

a. 180 degree

b. 60 Degree

c. less than Critical Angle

d. more than Critical Angle

Explanation: The phenomenon of total internal reflection is possible when the angle of incidence is more than Critical Angle

10/12

critical angle of light incidenting from glass to air is minimum for

a. red

b. Green

c. Yellow

d. violet

Explanation: The phenomenon of total internal reflection is possible when the angle of incidence is

11/12

who proposed the dual theory of light

a. H.C orested

b. Huygens

c. max plank

d. de Broglie

Explanation: de Broglie proposed the dual theory of light

12/12

which of the following is not a property of light

it requires a material medium for propagation

b. it can travel through vacuum

c. it involves transportation of energy

d. it has finite speed

Explanation: light does not require material medium for propagation

Result: