Bhupendra

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kokila

Asked: January 24, 2025In: Class-11-Physics

In an energy recycling process, X g of steam at 100 °C becomes water at 100 °C which converts Y g of ice at 0 °C into water at 100 °C. The ratio of X and Y will be

A ratio is a mathematical comparison of two quantities showing how many times one value contains or is contained in another. It is expressed in the form “a:b” or as a fraction. Ratios help compare sizes, quantities or relationships and ...

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kokila

Asked: January 24, 2025In: Class-11-Physics

Water falls from a height 500 m. What is the rise in the temperature of water at the bottom, if the whole energy remains in water?(Specific heat of water = 4300 J/kg °C)

Energy is the ability to do work. It exists in various forms, like kinetic, potential, thermal and chemical. Energy powers everything, from machines to living beings. It cannot be created or destroyed, only transformed. Renewable sources, like solar and wind, ...

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ravi90

Asked: January 13, 2025In: Class-11-Physics

Two bodies of mass m and 4 m have equal kinetic energy. What is the ratio of their momentum?

Kinetic energy is the energy possessed by a body due to its motion, depending on its mass and velocity. Class 11 Physics, Chapter 5: Work, Energy and Power, emphasizes understanding concepts, solving problems and exploring applications, essential for mastering mechanics in ...

annu10

Asked: January 11, 2025In: Class-11-Physics

When is the work said to be done? Give some examples.

Work is the energy transferred to or from an object via the application of force along a distance. Class 11 Physics Work, Energy and Power CBSE EXAM 2024-25

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lallan20

Asked: January 8, 2025In: Class-11-Physics

If force acts on a body, whose line of action does not pass through its centre of gravity, then the body will experience

The center of gravity is the point where an object’s weight is evenly distributed, acting as the balance point. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

Bhupendra

In an energy recycling process, X g of steam at 100 °C becomes water at 100 °C which converts Y g of ice at 0 °C into water at 100 °C. The ratio of X and Y will be

Water falls from a height 500 m. What is the rise in the temperature of water at the bottom, if the whole energy remains in water?(Specific heat of water = 4300 J/kg °C)

Two bodies of mass m and 4 m have equal kinetic energy. What is the ratio of their momentum?

When is the work said to be done? Give some examples.

If force acts on a body, whose line of action does not pass through its centre of gravity, then the body will experience

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