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rinku singh

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rinku singh
rinku singh
Asked: January 17, 2025In: Class-11-Physics

Explain the concept of heat.

Heat is a form of energy that flows between objects due to a temperature difference. It always flows from a higher temperature to a lower one. Heat transfer occurs through conduction, convection and radiation. It plays a crucial role in ...

class 11 physicsheatthermal properties of matter
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rinku singh
Asked: January 17, 2025In: Class-11-Physics

A sphere of radius 3 cm is subjected to a pressure of 100 atm. Its volume decreases by 0.3 c.c. What will be its bulk modulus?

Bulk modulus is a measure of a material’s resistance to uniform compression. It is defined as the ratio of the applied pressure to the resulting relative volume change. A high bulk modulus indicates that the material is stiff and does ...

bulk modulusclass 11 physicsmechanical properties of solids
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rinku singh
Asked: January 17, 2025In: Class-11-Physics

A substance breaks down by a stress of 10⁶ N/m². If the density of the material of the wire is 3 x 10³ kg/m³, then the length of the wire of the substance which will break under its own weight when suspended vertically will be

Stress is the force applied per unit area of a material. It is a measure of how much force a material can withstand without breaking or deforming. Stress is typically expressed in pascals (Pa) and can be tensile compressive or ...

class 11 physicsmechanical properties of solidsstress
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Asked: January 17, 2025In: Class-11-Physics

A wire whose cross-sectional area is 2 mm² is stretched by 0.1 mm by a certain load, and if a similar wire of triple the area of cross-section is stretched by the same load, then the elongation of the second wire would be

Cross-sectional refers to the shape or area of an object when it is cut perpendicular to its length. In physics, it is used to describe the area through which forces, fluids, or electrical currents flow. It is important in calculating ...

class 11 physicscross-sectionalmechanical properties of solids
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Asked: January 17, 2025In: Class-11-Physics

When a body of mass M is hung from a spring, the spring extends by 1 cm. If the body of mass 2 M be hung from the same spring, the extension of spring will be

A spring is a mechanical device that stores and releases energy. It follows Hooke’s law, where the force needed to compress or stretch it is proportional to the displacement. Springs are commonly used in various applications such as shock absorbers, ...

class 11 physicsmechanical properties of solidsspring
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