Physics Quiz for NEET, AIPM and JEE
MCQs
Q1: Wavelength of a LASER beam can be used as a standard of
(a) Time
(b) Temperature
(c) Angle
(d) Length
Q2: A mercury barometer is enclosed in a tall glass cylinder. What happens to the level of mercury if air is slowly removed from the enclosure by a vacuum pump? The level
(a) steadily falls
(b) steadily rises
(c) remains unchanged
(d) suddenly falls to zero
Q3: Which of the following is not a thermodynamic function?
(a) enthalpy
(b) work done
(c) internal energy
(d) Gibb's energy
Q4: Which of the following is the smallest temperature?
(a) 1 °R
(b) 1 °C
(c) 1 °F
(d) 1 K
Q5: A metallic particle having no net charge is placed near a finite metal plate carrying a positive charge. The particle will be
(a) attracted towards plate
(b) repelled by the plate
(c) experience zero force
(d) experience force parallel to plate
Q6: In a charged capacitor, the energy resides in
(a) positive charges
(b) both positive and negative charges
(c) the field between the plates
(d) around the edge of the capacitor plates
Q7: A magnetic needle is kept in a non-uniform magnetic field. It
(a) may experience a force but certainly not a torque
(b) may experience a torque but certainly not a force
(c) may experience both a torque as well as a force
(d) will certainly experience neither a force nor a torque.
Q8: In LCR series AC circuit the phase difference between current I and the potential difference V at resonance is:
(a) 0
(b) π/2
(c) π/4
(d) π
Q9: LASER light is considered to be cohorent because it consists of
(a) many wavelengths
(b) uncoordinated wavelengths
(c) co-ordinated waves of exactly same wavelength
(d) divergent beam
Q10: Which of the following factors do not influence the capacity of a capacitor
(a) Distance between the plates
(b) Material of the plates
(c) Area of the plates
(d) same everywhere
Answer:
1: (d) Length
2: (b) steadily falls
3: (c) internal energy
4: (c) 1 °F
5: (a) attracted towards plate
6: (c) the field between the plates
7: (a) may experience a force but certainly not a torque
8: (b) π/2
9: (c) co-ordinated waves of exactly same wavelength
10: (b) Material of the plates
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