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A police man on duty detects a drop of 15% in the pitch of horn of a motor as it crosses it.If velocity of sound is 330m/a.Calculate speed of car.

Posted by Vishal Parija 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

A clock with an iron pendulum keeps correct time at 20C .How much will it lose or gain per day if the temp changes to 40C.(gamma=3.6×19^-6/C)

Posted by Vishal Parija 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Parallex

Posted by Vinay Sharma 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

pls. tell me all the important derivation of physics for class 11 examinations.

Posted by Payal Sriwastava 7 years, 10 months ago

CBSE > Class 11 > Physics

7 answers

Akash Shukla 7 years, 10 months ago

Newton law of colling

Mohit Fdk 7 years, 10 months ago

Laplus correction of Newton law

Àñshul Shärmã 7 years, 10 months ago

Differential equation of SHM

Àñshul Shärmã 7 years, 10 months ago

Degree s of freedom

Àñshul Shärmã 7 years, 10 months ago

Questions based on refrigerator or heat pump

Àñshul Shärmã 7 years, 10 months ago

Carnot theorem

Àñshul Shärmã 7 years, 10 months ago

Bernoulli's theorem, work energy theorem, relationship between cp -cv, Pascal law

ANSWER

Explain with reason whether the potential energy in the following cases increases or decreasis- 1- a spring is compressed 2- a spring is stretched 3- two dissimilar charges are brought near each other

Posted by Soni Sharma 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Solutions of cbse last year papers

Posted by Ankita Singla 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Mohit Fdk 7 years, 10 months ago

Kha h

Mohit Fdk 7 years, 10 months ago

Paper

ANSWER

Unit of work

Posted by Manali Gour 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Mohd Ashar Khan 7 years, 10 months ago

Joule-J

Dhruv Bansal 7 years, 10 months ago

Unit of work is Joule

ANSWER

Derive an expression for work done in isothermal process and adiabatic process.

Posted by Sahil Thukral 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

State poisley formula with derivation

Posted by Ashu Rathore 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

At which place on the earth the cebtripetal force is high

Posted by Nityam Bhangad 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Akash Shukla 7 years, 10 months ago

Centre of earth

ANSWER

Value of sin42'

Posted by Rudrakshi Shukla 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Prince Jaat 7 years, 10 months ago

0.669131

ANSWER

Si unit of acceleration

Posted by Ashish Chaudhary 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Dhruv Bansal 7 years, 10 months ago

m/sec^2

Nishka Shah 7 years, 10 months ago

M/sec^2

ANSWER

which type of questions migth come from ch8

Posted by Vaishnavi Gupta 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is Rate of flow of heat (join in series)

Posted by Akash Shukla 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Kavi Mani 7 years, 10 months ago

It is the change of temperature in the next body which is absorbing the heat from the source

ANSWER

Difference between vibration and oscillation.

Posted by Nilesh Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Anshika Patel 7 years, 10 months ago

Yes both ate the same thing but vibration is the improved quality of oscillation

Akash Shukla 7 years, 10 months ago

Both are same thing

ANSWER

what do you mean by oscillation and explain the term sustained oscillation, damped oscillation

Posted by Vrutiksinh Rathod 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Is pendulum vibrate or oscillate ?

Posted by Nilesh Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Dheerendra Singh Rajput 7 years, 10 months ago

It oacillates

Yashi Verma 7 years, 10 months ago

Pendulum oscillate as it move to and fro about its mean position

ANSWER

% change in momentum if kinetic energy is doubled??

Posted by Jyoti Upadhyay 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Wave

Posted by Sandeep Payal 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Àñshul Shärmã 7 years, 10 months ago

Waves is an oscillation accompained by the transfer of energy

ANSWER

Assuming 60% loss of energy is overcoming air friction find the height ascended by a body projected vertically upward with a speed of 60 M per second

Posted by Murari Pandey 7 years, 10 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What are elastimeters

Posted by Afsana Mir 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Sanjana Kumari 7 years, 10 months ago

It is a battery operated, fully portable indentation instrument for measuring skins instant elasticity.The elastimeter consists of 1 mm length indenter,a reference plate and built-in force sensor.

ANSWER

Open organic pipe

Posted by Mohit Rai 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Àñshul Shärmã 7 years, 10 months ago

An organ pipe is a sound producing element of a pipe organ that resonates at a specific pitch when pressurized air is driving through it

ANSWER

What is linear expan

Posted by Ajaz Anwar 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Àñshul Shärmã 7 years, 10 months ago

In response to change in temperature

Àñshul Shärmã 7 years, 10 months ago

Tendency of matter to change in shape size

ANSWER

In which liquid water or Honey the terminal velocity of a given object has a lower value

Posted by Àñshul Shärmã 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Àñshul Shärmã 7 years, 10 months ago

Thanks

Varun Banda 7 years, 10 months ago

Terminal velocity depends on the drag it experience. Since the viscosity of the honey is higher so in it drag will also be higher and hence less terminal velocity.

So in water terminal velocity will be higher than in honey.

ANSWER

Why is earth sooooo round?????

Posted by Dhanya Thatnagh 7 years, 10 months ago

CBSE > Class 11 > Physics

4 answers

Mohd Ashar Khan 7 years, 10 months ago

Earth is nor round niether sphere. It is spheroid.

Arpit Arpit 7 years, 10 months ago

Earth is not round and is not exactly sphere but it is flattened at the poles and bulges at the equator

Àñshul Shärmã 7 years, 10 months ago

Not round

Àñshul Shärmã 7 years, 10 months ago

Earth is spherical

ANSWER

What are systematic errors

Posted by Àñshul Shärmã 7 years, 10 months ago

CBSE > Class 11 > Physics

3 answers

Àñshul Shärmã 7 years, 10 months ago

?

Àñshul Shärmã 7 years, 10 months ago

Here iam not joking

Dhanya Thatnagh 7 years, 10 months ago

Error in the system

ANSWER

Why is second law the true law?

Posted by Saptorshi Chatterjee 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Akash Yadav 7 years, 10 months ago

Second law is true law because it follows the both first law and second law

Rijul Katewa 7 years, 10 months ago

Second law is true law because from second law we can prove first and third law.

ANSWER

What is velocity head. Also write its equation

Posted by Shivam Mishra 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Yukti Kathuria 7 years, 10 months ago

V^2/2g

ANSWER

Work energy theraom

Posted by Nivedika Sharma 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Shivam Mishra 7 years, 10 months ago

Total work done by a body is equal to the difference in its kinetic energy

ANSWER

Work energy theoram

Posted by Nivedika Sharma 7 years, 10 months ago

CBSE > Class 11 > Physics

2 answers

Md Hasan Raza Khan 7 years, 10 months ago

Work done by a resultant force of a body is equal to the change in kinetic energy of a body

Àñshul Shärmã 7 years, 10 months ago

It states that the work done by the net force acting on a body is equals to the change produced in the kinetic energy of the body

ANSWER

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