If the sphere of iron is heated, then its

Important Questions on Thermal Properties of Matter

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 62

Two rods one of aluminium of length $l_1$ having coefficient of linear expansion ${\alpha }_{\mathit{a}}\mathit{,}$ and other steel of length $l_2$ having coefficient of linear expansion ${\alpha }_{\mathrm{s}}$ are joined end to end. The expansion in both the rods is same on variation of temperature. Then the value of $\frac{l_1}{l_1+l_2}$ is

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 63

A difference of temperature of $25°\mathrm{C}$ is equivalent to a difference in Fahrenheit :

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 65

The absolute zero is the temperature at which

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 66

Absolute zero $\left(0 \mathrm{K}\right)$ is that temperature at which

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 67

The temperature on Celsius scale is $25°\mathrm{C}$. What is the corresponding temperature on the Fahrenheit scale

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 68

Two thermometers are used to record the temperature of a room. If the bulb of one is wrapped in wet hanky

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 69

A centigrade and a Fahrenheit thermometer are dipped in boiling water. The water temperature is lowered until the Fahrenheit thermometer registers $140{ }^{\mathrm{o}}\mathrm{F}$. What is the fall in temperature as registered by the centigrade thermometer?

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Alpha Question Bank for Medical: Physics>Chapter 15 - Thermal Properties of Matter>Exercise-1>Q 70

Value of $-40°\mathrm{C}$ in Fahrenheit scale is: