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Cp refers to contt pressure and Cv refers to constt volume. When pressure is constt then the heat given to the system is used in two ways:i) in raising the temperature ii)in expansion or in raising the volume. While in constt volume the total heat given to the system is used only in rising the the temperature. Hence Cp>Cv.

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What is volt

Posted by Goutam Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

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Naziya Shaikh 7 years, 10 months ago

Volt is the s.I unit of potential difference (P.D).

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Unit of kwh

Posted by Abhishek Kumar 7 years, 10 months ago

CBSE > Class 11 > Physics

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Nandu Js 7 years, 10 months ago

Joule(J)

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The hot food smell comes to ours very fast compare the cold food why

Posted by Harshit Pandey 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Kapoor Ji 7 years, 10 months ago

Diffusion bro

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A women is traveling in a car at a speed of 25m/s. She is moving away from a source producing a sound of 512 Hz. Calculate the frequency of sound heard by her

Posted by Hari Narayanan 7 years, 10 months ago

CBSE > Class 11 > Physics

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Two blocks of masses 8kg and 12kg are kept on a smooth horizontal surface. Calculate the maximum horizontal force which should be applied to the lower block so that they can move together. The coefficient of static friction between the surfaces of two blocks is 0.4

Posted by Alisha Ansari 7 years, 10 months ago

CBSE > Class 11 > Physics

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What is dalta

Posted by Mayank Parihar 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Mohit Chauhan 7 years, 10 months ago

Delta is any constant generally used in quadratic equations in maths and in physics and chemistry too.

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What is Carnot Engine?

Posted by Aman Singh 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Siddharth Dhondiyal 7 years, 10 months ago

Sadi Carnot devised an ideal cycle of operation for heat engine, this cycle came to be known as Carnot cycle. The machine used for realising this ideal cycle of operations is called an ideal heat engine or Carnot Engine.

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State principle of homogeneity.

Posted by Abhi Rohitas 7 years, 10 months ago

CBSE > Class 11 > Physics

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A heat engine has an effiency of 22%.If the difference between heat absorb and heat loss in one cycle remains 74 joule then calculate the heat obtained by the engine from the heat source and heat lost in the heat sink

Posted by Renu Singh 7 years, 10 months ago

CBSE > Class 11 > Physics

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Explain me the main concept of gravitation in this chapter

Posted by Bipradeep Roy 7 years, 10 months ago

CBSE > Class 11 > Physics

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The frequency of two tuning forks A and B are 250 Hz and 255 hz respectively . Both are sound together , how many beats will produce after 5s?

Posted by Narinder Singh 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Virender Chahal 7 years, 10 months ago

No. Of beats produced in one second =255-250=5s No. Of beats in 5s =25s

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111111111vjdid

Posted by Vineet Gain 7 years, 10 months ago

CBSE > Class 11 > Physics

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Define modulus of rigidity?

Posted by Sameer Murthi 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Sankalp Das 7 years, 10 months ago

Shear Modulus (Modulus of Rigidity) is the elasticity coefficient for shearing or torsion force. "the ratio of shear stress to the displacement per unit sample length (shear strain)"

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Need for banking circular rosd

Posted by Salma Kohli 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Sankalp Das 7 years, 10 months ago

To get friction as centripetal force And to avoid falling off

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What is physic s

Posted by Karim Hanigi 7 years, 10 months ago

CBSE > Class 11 > Physics

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defination of simpel harmonic motion

Posted by Akshra Sharma 7 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

Mayank Pathak 7 years, 10 months ago

To and fro motion motion of body under affect of restoring force which directed towardfixed position and whose mag. is.directly prop.to displace of body from fixed position

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What is the Young's modulus of steel?

Posted by Anjali Jaiswal 7 years, 10 months ago

CBSE > Class 11 > Physics