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. The deflection for 50 division of galvanometer is decreased to 25 divisions by shunt resistance of 12Ω. Galvanometer resistance is_____________?
  1. 18Ω
  2. 30Ω
  3. 24Ω
  4. 12Ω
Question. Central spot of Newtons rings __________________?
  1. bright
  2. dark for large wavelength
  3. dark
  4. bright for large wavelength
Question. The area under the force displacement graph represents__________________?
  1. area
  2. work done
  3. power
  4. none of these
Question. Total number of series in hydrogen spectrum is_____________?
  1. three
  2. four
  3. five
  4. six
Question. A 10Ω electric heater is connected to a 220V 50Hz mains supply. What is the peak value of the potential difference across the heater element ?
  1. 220V
  2. 220/ 2V
  3. 110V
  4. 220 √2V
Question. Blood vessels are______________?
  1. Rigid
  2. Not rigid
  3. Of glass
  4. Of rubber
Question. A changing magnetic flux produces around itself an induced_______________?
  1. Magnetic field
  2. Electric field
  3. Electromagnetic force
  4. Artificial gravitational field
Question. How much heat does a 40 W bulb generates in one hour ?
  1. 144000J
  2. 144J
  3. 1.44J
  4. 14J
Question. Work has the dimension as that of same as that of__________________?
  1. torque
  2. angular momentum
  3. linear momentum
  4. power
Question. Pair production takes place in the vicinity of a heavy nucleus so that_____________?
  1. Net energy is conserved
  2. Net charge is conserved
  3. Net momentum is conserved
  4. All of the above
Question. Moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R, the ratio of displacement to the covered path will be_______________?
  1. πR
  2. 2πR
  3. 0
  4. 4πR
Question. During an encounter with an atom alpha particle knocks out ______________?
  1. Protons
  2. Electrons
  3. Neutrons
  4. Nothing
Question. Work done by variable force is determine by dividing____________________?
  1. force into small interval
  2. displacement into small interval
  3. both force and displacement into small intervals
  4. force into small and displacement into large intervals