There are four types of fundamental forces in nature.These are named as gravitational force,electromagnetic force,strong nuclear force and weak nuclear force.
As per the question we have to understand the role of strong nuclear force and weak nuclear force.
An atom consists of a nucleus surrounded by extra nuclear part consisting of electrons in various orbits.The nucleus contains two basic particles called protons and neutrons .Protons are positively charged while neutrons are neutral.Protons being positively charged will impart repulsive force on each other and may come out of the nucleus.But the nucleus is stable.That is due to the strong nuclear force.
Strong nuclear force is a spin dependent and charge independent force which comes into existence due to the mutual interaction of gluons which binds the protons and neutrons .Hence it is attractive in nature.It's 100 times more stronger than electromagnetic force also.
Weak nuclear force comes into existence during radio -active decay .This force is due to the exchange of ' w' and 'z' bosons[the particles like protons and neutrons having integral or zero spin] which are heavier in nature.The role of it is to change protons into neutrons and vice versa.Its a short range force.
Hence the option D is right.
Answer:
C
Explanation:
got a one hundred on the test
<u>Answer:</u>
<em>The shear modulus of the cube material is 
.
</em>
<u>Explanation:</u>
<em>Given that shearing force applied F = 1500 N </em>
<em>Displacement produced x = 0.1 cm=0.001 m </em>
<em>side of the cube =20 cm = 0.2 m
</em>
Since the object is a cube the upper surface is a square and it is on this surface the shearing
force is applied
<em>area of the upper surface 
</em>
<em>shear strain = tan θ = 
</em>
<em>shearing stress = 
</em>
<em>modulus of rigidity η 
</em>
<em>
</em>
Answer:
D
Explanation:
P=Work/Time
The rate at which work is done matches that.
Answer::
Explanation:
From the question we are told that
The distance of separation is 
The distance of the screen is 
The width of the fringe is 
Generally the width of the width of the fringes is mathematically represented as
=> 
=> 
=> 
=>
Generally the speed of light is mathematically represented as
=> 
=> 
=>
