00. Temperature and Measurement of Temperature (Thermometer)
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Thermal Properties of Matter

146471 A black body is at temperature of $500 \mathrm{~K}$. It emits energy at rate which is proportional to

1 $(500)^{4}$
2 $(500)^{3}$
3 $(500)^{2}$
4 500
AIPMT-1997
Thermal Properties of Matter

146473 For a black body at temperature $727^{\circ} \mathrm{C}$, its radiating power is $60 \mathrm{~W}$ and temperature of surrounding is $227^{\circ} \mathrm{C}$. If the temperature of the black body is changed to $1227^{\circ} \mathrm{C}$, then its radiating power will be

1 $120 \mathrm{~W}$
2 $240 \mathrm{~W}$
3 $304 \mathrm{~W}$
4 $320 \mathrm{~W}$
AIPMT-2002
Thermal Properties of Matter

146474 Certain quantity of water cools from $70^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in the first $5 \mathrm{~min}$ and to $54^{\circ} \mathrm{C}$ in the next 5 $\mathrm{min}$. The temperature of the surroundings is

1 $45^{\circ} \mathrm{C}$
2 $20^{\circ} \mathrm{C}$
3 $42^{\circ} \mathrm{C}$
4 $10^{\circ} \mathrm{C}$
AIPMT-2014
Thermal Properties of Matter

146475 A body cools from a temperature $3 T$ to $2 T$ in 10 minutes. The room temperature is $T$. Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be

1 $\frac{7}{4} \mathrm{~T}$
2 $\frac{3}{2} \mathrm{~T}$
3 $\frac{4}{3} \mathrm{~T}$
4 $\mathrm{T}$
NEET-2016
Thermal Properties of Matter

146476 A spherical black body with a radius of $12 \mathrm{~cm}$ radiates 450 watt power at $500 \mathrm{~K}$. If the radius were halved and the temperature doubled, the power radiated in watt would be

1 225
2 450
3 1000
4 1800
NEET-2017
NEET DIGITAL LIBRARY
Thermal Properties of Matter

146471 A black body is at temperature of $500 \mathrm{~K}$. It emits energy at rate which is proportional to

1 $(500)^{4}$
2 $(500)^{3}$
3 $(500)^{2}$
4 500
AIPMT-1997
Thermal Properties of Matter

146473 For a black body at temperature $727^{\circ} \mathrm{C}$, its radiating power is $60 \mathrm{~W}$ and temperature of surrounding is $227^{\circ} \mathrm{C}$. If the temperature of the black body is changed to $1227^{\circ} \mathrm{C}$, then its radiating power will be

1 $120 \mathrm{~W}$
2 $240 \mathrm{~W}$
3 $304 \mathrm{~W}$
4 $320 \mathrm{~W}$
AIPMT-2002
Thermal Properties of Matter

146474 Certain quantity of water cools from $70^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in the first $5 \mathrm{~min}$ and to $54^{\circ} \mathrm{C}$ in the next 5 $\mathrm{min}$. The temperature of the surroundings is

1 $45^{\circ} \mathrm{C}$
2 $20^{\circ} \mathrm{C}$
3 $42^{\circ} \mathrm{C}$
4 $10^{\circ} \mathrm{C}$
AIPMT-2014
Thermal Properties of Matter

146475 A body cools from a temperature $3 T$ to $2 T$ in 10 minutes. The room temperature is $T$. Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be

1 $\frac{7}{4} \mathrm{~T}$
2 $\frac{3}{2} \mathrm{~T}$
3 $\frac{4}{3} \mathrm{~T}$
4 $\mathrm{T}$
NEET-2016
Thermal Properties of Matter

146476 A spherical black body with a radius of $12 \mathrm{~cm}$ radiates 450 watt power at $500 \mathrm{~K}$. If the radius were halved and the temperature doubled, the power radiated in watt would be

1 225
2 450
3 1000
4 1800
NEET-2017
Join With Us for More Updates
Thermal Properties of Matter

146471 A black body is at temperature of $500 \mathrm{~K}$. It emits energy at rate which is proportional to

1 $(500)^{4}$
2 $(500)^{3}$
3 $(500)^{2}$
4 500
AIPMT-1997
Thermal Properties of Matter

146473 For a black body at temperature $727^{\circ} \mathrm{C}$, its radiating power is $60 \mathrm{~W}$ and temperature of surrounding is $227^{\circ} \mathrm{C}$. If the temperature of the black body is changed to $1227^{\circ} \mathrm{C}$, then its radiating power will be

1 $120 \mathrm{~W}$
2 $240 \mathrm{~W}$
3 $304 \mathrm{~W}$
4 $320 \mathrm{~W}$
AIPMT-2002
Thermal Properties of Matter

146474 Certain quantity of water cools from $70^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in the first $5 \mathrm{~min}$ and to $54^{\circ} \mathrm{C}$ in the next 5 $\mathrm{min}$. The temperature of the surroundings is

1 $45^{\circ} \mathrm{C}$
2 $20^{\circ} \mathrm{C}$
3 $42^{\circ} \mathrm{C}$
4 $10^{\circ} \mathrm{C}$
AIPMT-2014
Thermal Properties of Matter

146475 A body cools from a temperature $3 T$ to $2 T$ in 10 minutes. The room temperature is $T$. Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be

1 $\frac{7}{4} \mathrm{~T}$
2 $\frac{3}{2} \mathrm{~T}$
3 $\frac{4}{3} \mathrm{~T}$
4 $\mathrm{T}$
NEET-2016
Thermal Properties of Matter

146476 A spherical black body with a radius of $12 \mathrm{~cm}$ radiates 450 watt power at $500 \mathrm{~K}$. If the radius were halved and the temperature doubled, the power radiated in watt would be

1 225
2 450
3 1000
4 1800
NEET-2017
For More Updates join with Us
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Thermal Properties of Matter

146471 A black body is at temperature of $500 \mathrm{~K}$. It emits energy at rate which is proportional to

1 $(500)^{4}$
2 $(500)^{3}$
3 $(500)^{2}$
4 500
AIPMT-1997
Thermal Properties of Matter

146473 For a black body at temperature $727^{\circ} \mathrm{C}$, its radiating power is $60 \mathrm{~W}$ and temperature of surrounding is $227^{\circ} \mathrm{C}$. If the temperature of the black body is changed to $1227^{\circ} \mathrm{C}$, then its radiating power will be

1 $120 \mathrm{~W}$
2 $240 \mathrm{~W}$
3 $304 \mathrm{~W}$
4 $320 \mathrm{~W}$
AIPMT-2002
Thermal Properties of Matter

146474 Certain quantity of water cools from $70^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in the first $5 \mathrm{~min}$ and to $54^{\circ} \mathrm{C}$ in the next 5 $\mathrm{min}$. The temperature of the surroundings is

1 $45^{\circ} \mathrm{C}$
2 $20^{\circ} \mathrm{C}$
3 $42^{\circ} \mathrm{C}$
4 $10^{\circ} \mathrm{C}$
AIPMT-2014
Thermal Properties of Matter

146475 A body cools from a temperature $3 T$ to $2 T$ in 10 minutes. The room temperature is $T$. Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be

1 $\frac{7}{4} \mathrm{~T}$
2 $\frac{3}{2} \mathrm{~T}$
3 $\frac{4}{3} \mathrm{~T}$
4 $\mathrm{T}$
NEET-2016
Thermal Properties of Matter

146476 A spherical black body with a radius of $12 \mathrm{~cm}$ radiates 450 watt power at $500 \mathrm{~K}$. If the radius were halved and the temperature doubled, the power radiated in watt would be

1 225
2 450
3 1000
4 1800
NEET-2017
NEET DIGITAL LIBRARY
Thermal Properties of Matter

146471 A black body is at temperature of $500 \mathrm{~K}$. It emits energy at rate which is proportional to

1 $(500)^{4}$
2 $(500)^{3}$
3 $(500)^{2}$
4 500
AIPMT-1997
Thermal Properties of Matter

146473 For a black body at temperature $727^{\circ} \mathrm{C}$, its radiating power is $60 \mathrm{~W}$ and temperature of surrounding is $227^{\circ} \mathrm{C}$. If the temperature of the black body is changed to $1227^{\circ} \mathrm{C}$, then its radiating power will be

1 $120 \mathrm{~W}$
2 $240 \mathrm{~W}$
3 $304 \mathrm{~W}$
4 $320 \mathrm{~W}$
AIPMT-2002
Thermal Properties of Matter

146474 Certain quantity of water cools from $70^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in the first $5 \mathrm{~min}$ and to $54^{\circ} \mathrm{C}$ in the next 5 $\mathrm{min}$. The temperature of the surroundings is

1 $45^{\circ} \mathrm{C}$
2 $20^{\circ} \mathrm{C}$
3 $42^{\circ} \mathrm{C}$
4 $10^{\circ} \mathrm{C}$
AIPMT-2014
Thermal Properties of Matter

146475 A body cools from a temperature $3 T$ to $2 T$ in 10 minutes. The room temperature is $T$. Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be

1 $\frac{7}{4} \mathrm{~T}$
2 $\frac{3}{2} \mathrm{~T}$
3 $\frac{4}{3} \mathrm{~T}$
4 $\mathrm{T}$
NEET-2016
Thermal Properties of Matter

146476 A spherical black body with a radius of $12 \mathrm{~cm}$ radiates 450 watt power at $500 \mathrm{~K}$. If the radius were halved and the temperature doubled, the power radiated in watt would be

1 225
2 450
3 1000
4 1800
NEET-2017