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Physics Mcqs

Electron moves in the orbit as________________?

  • (A)  Simple vibratory motion
  • (B)  Standing wave motion
  • (C)  Vibratory motion like up and down
  • (D)  S.H.M likes the sound
Submitted By :Ali Uppal


Compton effect proves the________________?

  • (A)  Photon theory of light
  • (B)  Dual nature of light
  • (C)  Wave nature of light
  • (D)  Uncertain nature of light
Submitted By :Ali Uppal


The energy radiated is directly proportional to the fourth power of Kelvins temperature is________________?

  • (A)  Karl-Weins law
  • (B)  Rayleigh-Jeans law
  • (C)  Stephens law
  • (D)  Plancks
Submitted By :Ali Uppal


For confinement of electron in a box of radius 10-14m the electron, speed should be_____________?

  • (A)  107m/sec
  • (B)  Should be greater than the speed of light.
  • (C)  Be zero
  • (D)  Not be wave-like
Submitted By :Ali Uppal


The uncertainty in momentum & position is due to its_____________?

  • (A)  Property of matter and radiation
  • (B)  Two-dimensional motion
  • (C)  Emission of the certain wavelength
  • (D)  Very high velocity
Submitted By :Ali Uppal


A three-dimensional image is obtained by________________?

  • (A)  Electron microscope
  • (B)  Scanning electron microscope
  • (C)  Magnetic imaging
  • (D)  None of the above
Submitted By :Ali Uppal


Least distance of distinct vision_____________?

  • (A)  increases with increase in age
  • (B)  decreases with increase in age
  • (C)  neither increases nor decreases
  • (D)  becomes infinite after 60 years
Submitted By :Ali Uppal


Submitted By :Ali Uppal


For normal adjustment, length of astronomical telescope is______________?

  • (A)  fo + fe
  • (B)  fo – fe
  • (C)  fo / fe
  • (D)  fe / fo
Submitted By :Ali Uppal


Final image produced by a compound microscope is_____________?

  • (A)  real and inverted
  • (B)  real and erect
  • (C)  virtual and erect
  • (D)  virtual and inverted
Submitted By :Ali Uppal