Lakshya Education MCQs

Question: Which one type of radiation has the longest wave length
Options:
A.Infrared
B.Ultraviolet
C.X-ray
D.Radio Wave
Answer: Option D

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More Questions on This Topic :

Question 1. Forged documents are detected by
  1.    Ultraviolet rays
  2.    Infra-red rays
  3.    Beta rays
  4.    Gamma rays
Answer: Option A
Question 2. The radiation initially produced in fluorescent tube is
  1.    Infrared
  2.    Ultraviolet
  3.    Microwaves
  4.    X-rays
Answer: Option B
Question 3. Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by
  1.    Carbon dioxide
  2.    Ammonia
  3.    Chlorine
  4.    Ozone
Answer: Option D
Question 4. If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths?
  1.    LUV < lIR < lVIS
  2.    LUV > lVIS > lIR
  3.    LUV > lIR > lVIS
  4.    LUV < lVIS < lIR
Answer: Option D
Question 5. The device used for measuring the wavelength of X-rays is
  1.    G.M. Counter
  2.    Cyclotron
  3.    Bragg Spectrometer
  4.    Mass Spectrometer
Answer: Option C
Question 6. Transition ions absorb light in :
  1.    Infrared region
  2.    Ultraviolet region
  3.    Microwave region
  4.    Visible region
Answer: Option D

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