CHAPTER- 9-LIGHT REFLECTION AND REFRACTION
CHAPTER- 9-LIGHT REFLECTION AND REFRACTION WORKSHEET – 1 (VOLUME-01) TIME-40 MIN MM=34 M SECTION- A :MCQ (1X5=5M) A doctor uses a head mirror to focus light on the internal body parts such as teeth, ear, nose and throat. Which mirror is it?
a. Plane
b. Parabolic
c. Convex
d. Concave
The path of a ray of light coming from air passing through a rectangular glass slab traced by four students is shown as A, B, C and D in the figure. Which one of them is correct –
a. A
b. B
c. C
d. D
The SI unit of power of lens is:
a. Metre
b. Centimetre
c. dioptre
d. \( m^{-1} \)
In ( Q.no.4 & 5) a statement of Assertion is followed by a statement of reason . Mark the correct choice as :
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) Assertion is true but R is false.
(d…
