Which of the prism is used to see infra-red spectrum of light
Easy
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
- 1The absolute temperatures of two black bodies are $2000 K$ and $3000 K$ respectively. The ratio of wavelengths corresponding to maximum emission of radiation by them will beView Solution
- 2At temperature $T$ , the power radiated by a body is $Q$ watts. At the temperature $3T$ the power radiated by it will beView Solution
- 3he ratio of the coefficient of thermal conductivity of two different materials is $5 : 3$ . If the thermal resistance of the rod of same thickness resistance of the rods of same thickness of these materials is same, then the ratio of the length of these rods will beView Solution
- 4Two rods of same length and material transfer a given amount of heat in $12$ seconds, when they are joined end to end. But when they are joined lengthwise, then they will transfer same heat in same conditions in ....... $\sec$View Solution
- 5View SolutionIce is used in a cooler in order to cool its contents. Which of the following will speed up the cooling process?
- 6A black body at a temperature of $1640 K$ has the wavelength corresponding to maximum emission equal to $1.75$ $\mu $. Assuming the moon to be a perfectly black body, the temperature of the moon, if the wavelength corresponding to maximum emission is $ 14.35$ $\mu $ is ...... $K$View Solution
- 7Two spheres of the same material have radii $1\; m$ and $4\; m$ and temperatures $4000 \;K$ and $2000 \;K$ respectively. The ratio of the energy radiated per second by the first sphere to that by the second isView Solution
- 8The spectral emissive power $E_\lambda $ for a body at temperature $T_1$ is plotted against the wavelength and area under the curve is found to be $A$. At a different temperature $T_2$ the area is found to be $9A$. Then $\lambda _1/\lambda _2 =$View Solution
- 9Inside a closed furnace held at a temperature of $400\,\, K,$ we have a black body. A hole of area $10\,\, cm^2$ is opened in the furnace so that sunlight starts falling on black body. The intensity of sunlight is $2000\, W/m^2.$ In the steady stateView Solution
- 10View SolutionFour rods of silver, copper, brass and wood are of same shape. They are heated together after wrapping a paper on it, the paper will burn first on