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Author: LBC Academy

This author has written 29 articles
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Why the maximum height of a mountain on Earth is 10km ?

  • Post author:LBC Academy
  • Post published:November 21, 2023
  • Post category:Physics
  • Post comments:0 Comments

Explanation The maximum height of mountain on earth depends upon shear modulus of rock. At the base of the mountain, the stress due to all the rock on the top…

Continue ReadingWhy the maximum height of a mountain on Earth is 10km ?

Which is more elastic, rubber or steel ? Explain.

  • Post author:LBC Academy
  • Post published:November 14, 2023
  • Post category:Physics
  • Post comments:0 Comments

Explanation elasticity is the tendency of a body to oppose the change in its shape and size ( basically its configuration). Steel, because a body is said to be more…

Continue ReadingWhich is more elastic, rubber or steel ? Explain.

What is gravitational potential energy without acceleration ?

  • Post author:LBC Academy
  • Post published:November 2, 2023
  • Post category:Physics
  • Post comments:0 Comments

EXPLANATION Firstly we need to understand what is gravitational potential energy . It is defined as the amount of work done in bringing a body from infinity to a point…

Continue ReadingWhat is gravitational potential energy without acceleration ?

Write advantages of a reflecting telescope over a refracting telescope ?

  • Post author:LBC Academy
  • Post published:October 29, 2023
  • Post category:Physics
  • Post comments:0 Comments

Explanation Advantages of reflecting over refracting telescope are :  Mirrors can be made bigger than lenses in size.  No chromatic aberration.  In case parabolic mirror is used, then no spherical…

Continue ReadingWrite advantages of a reflecting telescope over a refracting telescope ?

How electromagnetic waves are produced ?

  • Post author:LBC Academy
  • Post published:October 26, 2023
  • Post category:Physics
  • Post comments:0 Comments

Explanation Electromagnetic waves are the combination of electric and magnetic field waves produced by moving charges. The creation of all electromagnetic waves begins with a charged particle. This charged particle…

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Derive the Relation between Torque and Angular momentum ?

  • Post author:LBC Academy
  • Post published:October 23, 2023
  • Post category:Physics
  • Post comments:0 Comments

Explanation Angular momentum(L) : It is an measure of the rotation of body, taking into account its mass , shape and speed. L = r × p where r is…

Continue ReadingDerive the Relation between Torque and Angular momentum ?

Why moon doesn’t have atmosphere ?

  • Post author:LBC Academy
  • Post published:October 19, 2023
  • Post category:Physics
  • Post comments:0 Comments

Explanation The moon's escape velocity is much less than the root mean square (RMS) velocity of gas molecules on the moon. Therefore, the molecules of gas escape from the moon’s…

Continue ReadingWhy moon doesn’t have atmosphere ?

Why power is not consumed in case of purely inductive and capacitive circuit ?

  • Post author:LBC Academy
  • Post published:October 18, 2023
  • Post category:Physics
  • Post comments:0 Comments

Explanation INDUCTIVE CIRCUIT We know that in pure inductive circuit, current is lagging by 90 degree from voltage (in other words, Voltage is leading 90° from current) i.e the phase…

Continue ReadingWhy power is not consumed in case of purely inductive and capacitive circuit ?

What is self inductance and mutual inductance ?

  • Post author:LBC Academy
  • Post published:October 14, 2023
  • Post category:Physics
  • Post comments:0 Comments

Explanation Self Inductance Self-induction means the coils induce the emf themselves. There is a change in the magnetic flux through that coil and because of this, the current will be…

Continue ReadingWhat is self inductance and mutual inductance ?

What is torque ?

  • Post author:LBC Academy
  • Post published:October 11, 2023
  • Post category:Physics
  • Post comments:0 Comments

Explanation Torque is a measure of the force that can cause an object to rotate about an axis. Torque is a vector quantity. The direction of the torque vector depends…

Continue ReadingWhat is torque ?
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