MCQs4All - Physics Collection

Physics MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Teaching, CT, PTC, SST, B.Ed, M.Ed Test of past papers

Question. Three students measured the length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is a correct record ?
  1. Only (i)
  2. Only (ii)
  3. Only (iii)
  4. Both (i) and (ii)
Question. Increase in velocity of sound in the air for 1°C rise in temperature is_________________?
  1. 1.61 ms-1
  2. 61.0 ms-1
  3. 0.61 ms-1
  4. 2.00 ms-1
Question. SI unit of flux density is____________________?
  1. NA-1m-1
  2. NAm-1
  3. NmA-1
  4. NmA-2
Question. p-n junction when reversed biased acts as a_______________?
  1. capacitor
  2. inductor
  3. on switch
  4. off switch
Question. Any alteration produced in shapes length or volume when a body is subjected to some external force is called____________________?
  1. Stiffness
  2. Toughness
  3. Extension
  4. Deformation
Question. The angular position of cells remains the same for a sample of a crystal. This property is called___________________?
  1. Isotropy
  2. Cleavage
  3. Homogeneity
  4. The external symmetry of form
Question. The minimum distance between an object and its real image in a convex lens is_____________?
  1. 2 f
  2. 2.5 f
  3. 3f
  4. 4f