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Home/Class 11/Class-11-Physics/Page 31

Category: Class-11-Physics

NCERT Solutions and extra questions for class 11 Physics

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Jasprit Sharma
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Jasprit Sharma
Asked: January 20, 2025In: Class-11-Physics

A pressure cooker reduces cooking time for food, becuase

Thermal properties of matter refer to the characteristics that describe how substances respond to heat. These include thermal expansion, specific heat capacity, and thermal conductivity. Understanding these properties is essential for analyzing heat transfer processes, phase changes, and the behavior ...

class 11 physicsheatthermal properties of matter
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Jasprit Sharma
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Jasprit Sharma
Asked: January 20, 2025In: Class-11-Physics

Heat given to a body, which raises its temperature by 1° C is

Temperature is a measure of the average kinetic energy of particles in a substance. It determines the direction of heat flow between objects and is commonly measured in Celsius, Fahrenheit, or Kelvin. Temperature plays a crucial role in physical and ...

class 11 physicstemperaturethermal properties of matter
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Jasprit Sharma
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Jasprit Sharma
Asked: January 20, 2025In: Class-11-Physics

A spherical black body with a radius 12 cm radiates 450W power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be

Power is the rate of doing work or transferring energy, measured in watts (W). It is calculated as work done or energy transferred per unit time. Mathematically, power equals force times velocity or energy divided by time. It is crucial ...

class 11 physicspowerthermal properties of matter
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Jasprit Sharma
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Jasprit Sharma
Asked: January 20, 2025In: Class-11-Physics

A block of steel heated to 100° C is left in a room to cool. Which of the curves shown in the figure, represents the correct behaviour?

Curves are smooth flowing lines or shapes that are not straight or angular. They can be open or closed and are found in various forms like circles, arcs and spirals. Curves are essential in geometry, art and design and are ...

class 11 physicscurvesthermal properties of matter
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Jasprit Sharma
Poll
Jasprit Sharma
Asked: January 20, 2025In: Class-11-Physics

A sphere, a cube and a thin circular plate, all made of the same material and having the same mass, are initially heated to a temperature of 3,000°C. Which of these will cool fastest?

A sphere is a perfectly round three-dimensional shape with all points on its surface equidistant from the center. It has no edges or vertices and exhibits symmetry. Common examples include balls and planets. The volume and surface area of a ...

class 11 physicsspherethermal properties of matter
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