Answer:
I think c is the answer but I have a little concern on d too
Answer:
m
Explanation:
= slit width = 0.1 mm = 0.1 x 10⁻³ m
= wavelength of monochromatic light = 500 nm = 500 x 10⁻⁹ m
= Distance of the screen = 10 m
= Spacing between successive minima
Spacing between successive minima is given as

Inserting the values given

m
Explanation:
It is given that,
Mass of an object, 
(a) Time period of oscillation, T = 2.4 s
The formula for the time period of spring is given by :

Where
k is the force constant



(b) Displacement in the spring, x = 2.2 m
Energy stored in the spring is given by :



Hence, this is the required solution.
Answer:
5000
Explanation:
F=ke where f is the force, k is the spring constant, e is the extension....all in standard units
Answer:
human potential energy
Explanation:
It is given that, before a ball rolls down a hill, it has gravitational potential energy.
Before a rubber ball bounces away from a surface, it has elastic potential energy.
Human potential energy allows us to throw a ball. While throwing a ball, we have to apply some force by our muscles in order to done some work.Also, we know that the capacity to do work is called energy.
Hence, the correct option is (D) " human potential energy ".