QUIZ ON OPTICS : MCQ ON RAY OPTICS PART-1

 

1/12
Focal length of a plane mirror is
(a)At infinity
(b) Zero
(c) negative
(d) none of these
2/12
Image formed by a convex spherical mirror is
(a) Virtual
(b) real
(c) enlarged
(d) inverted
3/12
A plane mirror produces a magnification of
(a) -1
(b) +1
(c) Zero
(d) between zero and infinity
4/12
(iv) When a ray of light enters a glass slab then
(a) Its frequency and velocity change
(b)Only frequency change
(c) Frequency and wavelength change
(d)Its frequency does not change
5/12
(v)The colour of light which is deviated the least by a prism in the spectrum of light is
(a) red
(b) green
(c) violet
(d) yellow
6/12
(i)Speed of light is maximum in ...
air
vacuum
water
None of these
7/12
The mirror used as a shaving glass is
a. convex mirror
b. plane mirror
c. concave mirror
d. parabolic mirror
8/12
The focal length of lens of power 2 D is
a. 50 cm
b. 1.25 cm
c. 47 cm
d. 25 cm
9/12
The image of real object as seen through a convex mirror is
a. real
b. enlarged
c. virtual
d. none of the above
10/12
The size of image formed by a convex mirror is
a. diminished
b. magnified
c. same size
d. none of the above
11/12
Image formed by a convex mirror is
a. real and inverted
b. real and erect
c. virtual and inverted
d. virtual and erect
12/12
When light enters a glass what happens to the wavelength
a. decreases
b. Increases
c. remains constant
d. either b or c
Result:

RECENT UPDATES