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प्रश्न
Name the phenomenon which shows the quantum nature of electromagnetic radiation.
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उत्तर
Photoelectric effect is the phenomenon which shows the quantum nature of electromagnetic radiation.
संबंधित प्रश्न
How are infrared waves produced?
State Moseley's law
Name the region beyond the violet end of the spectrum called.
State the approximate range of wavelength associated with visible light.
How are X-rays produced?
X-ray from a Coolidge tube is incident on a thin aluminium foil. The intensity of the X-ray transmitted by the foil is found to be I0. The heating current is increased to increase the temperature of the filament. The intensity of the X-ray transmitted by the foil will be
(a) zero
(b) < I0
(c) I0
(d) > I0
Find the cutoff wavelength for the continuous X-rays coming from an X-ray tube operating at 30 kV.
(Use Planck constant h = 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Choose the correct option.
The EM wave emitted by the Sun and responsible for heating the Earth’s atmosphere due to greenhouse effect is
Why does microwave oven heats up a food item containing water molecules most efficiently?
Write two uses of the following radiation.
X-rays
