English

Choose the correct option. The EM wave emitted by the Sun and responsible for heating the Earth’s atmosphere due to greenhouse effect is - Physics

Advertisements
Advertisements

Question

Choose the correct option.

The EM wave emitted by the Sun and responsible for heating the Earth’s atmosphere due to greenhouse effect is

Options

  • Infra-red radiation

  • X-ray

  • Microwave

  • Visible light

MCQ

Solution

Infra-red radiation

shaalaa.com
  Is there an error in this question or solution?
Chapter 13: Electromagnetic Waves and Communication System - Exercises [Page 240]

APPEARS IN

Balbharati Physics [English] 11 Standard Maharashtra State Board
Chapter 13 Electromagnetic Waves and Communication System
Exercises | Q 1. (i) | Page 240

Video TutorialsVIEW ALL [2]

RELATED QUESTIONS

Use the formula λm T= 0.29 cm K to obtain the characteristic temperature ranges for different parts of the electromagnetic spectrum. What do the numbers that you obtain tell you?


Give a reason for the following:

Long-distance radio broadcasts use short-wave bands. Why?


The small ozone layer on top of the stratosphere is crucial for human survival. Why?


What do you understand by the statement, "Electromagnetic waves transport momentum"?


State the approximate range of wavelength associated with infrared rays.


How are X-rays produced?


An X-ray beam can be deflected


If the potential difference applied to the tube is doubled and the separation between the filament and the target is also doubled, the cutoff wavelength


50% of the X-rays coming from a Coolidge tube are able to pass through a 0.1 mm thick aluminium foil. If the potential difference between the target and the filament is increased, the fraction of the X-rays passing through the same foil will be


Visible light passing through a circular hole forms a diffraction disc of radius 0.1 mm on a screen. If an X-ray is passed through the same setup, the radius of the diffraction disc will be


Find the energy, the frequency and the momentum of an X-ray photon of wavelength 0.10 nm.

(Use Planck constant h = 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)


The X-ray coming from a Coolidge tube has a cutoff wavelength of 80 pm. Find the kinetic energy of the electrons hitting the target.

(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)


Suppose a monochromatic X-ray beam of wavelength 100 pm is sent through a Young's double slit and the interference pattern is observed on a photographic plate placed 40 cm away from the slit. What should be the separation between the slits so that the successive maxima on the screen are separated by a distance of 0.1 mm?


What is the cause of dispersion?

To which regions of the electromagnetic spectrum do the following wavelengths belong: 
(a) 250 nm 
(b) 1500 nm 


Identify the part of the electromagnetic spectrum used in (i) radar and (ii) eye surgery. Write their frequency range.


Give one use of electromagnetic radiations in Infrared radiation.


Choose the correct option.

How does the frequency of a beam of ultraviolet light change when it travels from air into glass?


Answer briefly.

Does an ordinary electric lamp emit EM waves?


If the Earth did not have atmosphere, would its average surface temperature be higher or lower than what it is now? Explain.


An e.m. wave exerts pressure on the surface on which it is incident. Justify.


X-rays, gamma rays and microwaves travelling in a vacuum have ______.


Microwaves are electromagnetic waves with frequency in the range of.


The ozone layer absorbs


What is time period of the light for which the eye is most sensitive?


If λv, λx and λm Am represents the wavelength of visible light, x-ray and microwaves respectively, then ______.


Give any two uses of infrared waves.


Identify the electromagnetic wave whose wavelength range is from about 10-3 m to about 10-1 m. Write one use of this.


What happens when an electron collides with a positron?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×
Our website is made possible by ad-free subscriptions or displaying online advertisements to our visitors.
If you don't like ads you can support us by buying an ad-free subscription or please consider supporting us by disabling your ad blocker. Thank you.