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संबंधित प्रश्न
What physical quantity is the same for X-rays of wavelength 10−10 m, red light of wavelength 6800 Å and radiowaves of wavelength 500 m?
The small ozone layer on top of the stratosphere is crucial for human survival. Why?
Name the subjective property of light related to its wavelength.
Frequencies of Kα X-rays of different materials are measured. Which one of the graphs in the figure may represent the relation between the frequency v and the atomic number Z ?
Name the part of the electromagnetic spectrum which is:
Produced by bombarding a metal target with high electrons.
Name the radiation of the electromagnetic spectrum which is used for the following:
Radar and Give the frequency range.
Name any two electromagnetic waves which have a frequency higher than that of violet light. State one use of each.
State three properties of ultra-violet radiation similar to visible light.
What is time period of the light for which the eye is most sensitive?
What happens to the intensity of light from a bulb if the distance from the bulb is doubled? As a laser beam travels across the length of a room, its intensity essentially remains constant. What geometrical characteristic of LASER beam is responsible for the constant intensity which is missing in the case of light from the bulb?
