Advertisements
Advertisements
प्रश्न
Name the region beyond the red end of the spectrum.
Advertisements
उत्तर
Infrared region.
संबंधित प्रश्न
(a) Give a list of at least five radiations, in order of their increasing frequencies, which make up the complete electromagnetic spectrum.
(b) Which of the radiation mentioned by you in part (a) has the highest penetrating power.
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
Name the part of the electromagnetic spectrum which is:
Suitable for radar systems used in aircraft navigation.
State three properties of infrared radiations similar to that of visible light.
Choose the correct option.
The EM wave emitted by the Sun and responsible for heating the Earth’s atmosphere due to greenhouse effect is
Answer briefly.
Does an ordinary electric lamp emit EM waves?
Following QN ∴ 14, the radiation force on the roof will be
Why does microwave oven heats up a food item containing water molecules most efficiently?
What is the speed of radio waves in vacuum?
Name the electromagnetic radiation that has been used in obtaining the image below.

