Question

Page No.
coth
SHREEXASH CLASSES
Practice Exam
subject-science & Technolagy-I
chapher- Refraction of light Mark -20
A) Filling the blanks.
3
» The speed of light in glass as in water
.
i Refractive index depend on the ~ of light.
ii) The Refractive index of diamond is
M.c.o
2
o the absolute refractive index
a) is expressed in diopter. .
b) is expressed in meter) second.
c) of air is about 4/3
unit
B)​

Answer 1

Explanation:

lThe force responsible for the attraction between the balloon and the wall is electrostatic force.

On rubbing the balloon with a piece of synthetic cloth, both the balloon and cloth acquires equal and opposite charges. Opposite charge develops on the wall due to induction and both balloon and wall get attracted to each other when balloon is pressed against the wall............

Answer 2

Answer:

Speed of light in different mediums is different