CBSE > Class 11 > Physics | CBSE Board | Homework Help

Ask questions which are clear, concise and easy to understand.

Ask Question

Excess pressure in liquid drop

Posted by Isha Singh 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Aakriti Kumari 7 years, 10 months ago

2S/r

0Thank You

ANSWER

What is specific heat at cnstant pressure

Posted by Koustav Mukherjee 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Mahima Sharma 7 years, 10 months ago

Cp = Cv + R

2Thank You

ANSWER

What does the slope of by graph represents

Posted by Vishal Kamboj 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Perfectly elastic collision in one dimension proof

Posted by Nikhil Tirkey 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

How to find period motion in expressions

Posted by Himanshi Jain 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State Hooke's law

Posted by Aman Baghel 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Prachi Patel 7 years, 10 months ago

Hooke's law states that the extension produced in a wire is directly proportional to the load applied. We can also say that stress is directly proportional to the strain.

4Thank You

ANSWER

Damped isolation

Posted by Shubham Gaur 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is meant by banking of road? Obtain an expression for the maximum speed with which a vehicle can safely negotiate a curved road banked at an angle θ. The coefficient of friction between the vehicle and road is p.

Posted by Raj Kashyap 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Can a body have zero velocity and a finite acceleration

Posted by Prashasti Gupta 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Ravi Pandey 7 years, 10 months ago

Yes When we throw a ball in upward direction, its velocity is zero at highest point but still undergoes acceleration

1Thank You

ANSWER

Q- derive an expression for total energy of particle executing SHM. Answer asap because i m confused in all derivations and have an exam tomorrow..help me

Posted by Aakansha R 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Utkarsha Nayak 7 years, 10 months ago

Don't get confused . Else you will not get good marks. Total energy = kinetic energy + potential energy . Thus total energy is derived.

0Thank You

ANSWER

Wht is pressure exerted by ideal gas

Posted by Preeti Kaprwan 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is resonant vibrations??

Posted by Jagtar Singh 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Why does a girl lean to wards right while carrying a bag in her left hand

Posted by Swati Kashyap 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Ravi Pandey 7 years, 10 months ago

The weight of bag exerts a torque clockwise and to counter that torque the girl leans towards right

0Thank You

ANSWER

Prove the avrage kinetice energy of a molecule of an ideal gas is directly proprotional to the absolute temperature

Posted by Gauri Sharma 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Si unit of force

Posted by Uttam Yadav 7 years, 10 months ago

CBSE > Class 11 > Physics

3 answers

Rohit Singh 7 years, 10 months ago

Newton

1Thank You

Jagtar Singh 7 years, 10 months ago

Newton

2Thank You

Yashraj Singh 7 years, 10 months ago

Newton is si unit of force

0Thank You

ANSWER

What is indicator diagram in detail

Posted by Garry Heera 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

two spherical balls of mass M and radius R placed at distance a apart. Write expression for the force between them

Posted by Arslan Khan 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Prove that total mechanical energy remains constant for a ball of mass m dropped from a tower of height h

Posted by Amit Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

define absolute zero temperature

Posted by Ritik Tiwari 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Arnav Verma 7 years, 10 months ago

The lowest possible hypothetical or theoretical temperature of -273.15 K at which volume of gas becomes zero is called absolute zero temperature

2Thank You

ANSWER

State & drive Bernoulli's theorem

Posted by Abhishek Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Prachi Patel 7 years, 10 months ago

Bernoulli's theorem which is also known as Bernoulli's principle, states that the sum of pressure energy, kinetic energy and potential energy per unit volume of an incompressible, non viscous fluid in a streamline irrotational flow remains constant along a streamline. Sorry I can't derive bernoulis theorem because it too long and tomorrow my exam

1Thank You

ANSWER

State and drive bernollis theroem

Posted by Abhishek Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State & drive Bernoulli's theoram

Posted by Abhishek Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Who wants last year papers of chemistry and physics

Posted by Mohit Fdk 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What are applications of stoke's law?

Posted by Aman Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

How to find the length of 2nd pendulum ??

Posted by Niharika Srivastav 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Amit Kumar 7 years, 10 months ago

2nd pendulum has time period 2sec put this in formula you will get it

1Thank You

ANSWER

What is difference between progressive wave and stationary wave

Posted by Ritik Kumar 4 years, 6 months ago

CBSE > Class 11 > Physics

1 answers

Sia ? 4 years, 6 months ago

Differences Between Stationary and Progressive Waves

In the case of a stationary wave, the energy is not propagated onwards because each particle possesses its own characteristic vibration. But in a progressive wave, the reason for energy being transmitted from one point to another is the transfer of vibration within the molecules of the wave.
The particles of the stationary waves, that are present at the node are completely at rest while others rest for a very short time span. As against, all the particles of progressive waves are in continuous motion and thus do not rest permanently.
Some specific velocity is associated with each particle and during motion, at the mean position, the particles attain their maximum velocity simultaneously in standing wave. While in the case of a progressive wave, all the wave particles move with the same maximum velocity at the mean position.
In a standing wave, the motion of the particles is non- transferrable but in a progressive wave, the motion is easily transferred to the particles in the forward direction.
For stationary waves, the energy is confined within the medium while progressive wave permits propagation of energy through the medium.
Stationary waves do not undergo forward motion and due to this its crests and troughs blink at the initial position. While this is not the case for progressive wave because the wave undergoes forward motion and thus the crests and troughs are also in motion.
In a stationary wave, the amplitude of each particle is 0 at the node and maximal at the antinode thus is different. However, in the progressive wave, the amplitude of each particle is the same but there is significant variation in phase.