The maximum wavelength of radiations emitted at $900\,K$ is $4\mu m$. What will be the maximum wavelength of radiations emitted at $1200 \,K$ ......... $\mu m$
Medium
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1View SolutionMud houses are cooler in summer and warmer in winter because
- 2A body cools from ${50.0^o}C$ to ${49.9^o}C$ in $5\;s$. How long will it take to cool from ${40.0^o}C$ to ${39.9^o}C$? Assume the temperature of surroundings to be ${30.0^o}C$ and Newton's law of cooling to be valid ....... $\sec$View Solution
- 3If the temperature of a hot body is increased by $50\%$ then the increase in the quantity of emitted heat radiation will be ..... $\%$View Solution
- 4If the temperature of a hot body is increased by $50\%$ then the increase in the quantity of emitted heat radiation will be ..... $\%$View Solution
- 5View SolutionSelect the incorrect statement
- 6The following figure shows two air-filled bulbs connected by a $ U-$ tube partly filled with alcohol. What happens to the levels of alcohol in the limbs $X$ and $Y$ when an electric bulb placed midway between the bulbs is lightedView Solution
- 7A body cools from $60\,^oC$ to $50\,^oC$ in $10\,minutes$ . If the room temperature is $25\,^oC$ and assuming Newton's law of cooling to hold good, the temperature of the body at the end of the next $10\,minutes$ will be ......... $^oC$View Solution
- 8View SolutionA hot body will radiate heat most rapidly if its surface is
- 9A body takes $5$ minutes to cool from $90^oC$ to $60^oC$. If the temperature of the surroundings is $20^oC$, the time taken by it to cool from $60^oC$ to $30^oC$ will be ...... $\min.$View Solution
- 10The radiant energy from the sun incident normally at the surface of earth is $20\, \frac{{k\;cal}}{{{m^2}\;min}}$. What would have been the radiant energy incident normally on the earth, if the sun had a temperature twice of the present one ....... $kcal/m ^2 \,min$View Solution