It will be choice e.100 because 500/5=100 km per hour
Explanation:
The least count of the normal scale is 1mm whereas the least count of vernier calliper is 0.01 mm
Answer:
-25 m/s
Explanation:
Since the ball was caught at the same height, it has the same speed and opposite direction that it went up with.
Answer:
225cos30
Explanation:
Force in the direction of the work done
Answer:
The refractive index of glass,
Solution:
Brewster angle is the special case of incident angle that causes the reflected and refracted rays to be perpendicular to each other or that angle of incident which causes the complete polarization of the reflected ray.
To determine the refractive index of glass:
(1)
where
= refractive index of glass
= refractive index of glass
Now, using eqn (1)