? GTU Engineering 1st Year MCQ | Physics-2110011 Winter 2015 Sem-1

MCQ(s) of Physics (2110011) - Winter 2015 Sem-1

    • Q. 1  The value of standard intensity is
    • (A) 0 Wm-2
      (B) 10-12 Wm-2
    • (C) 10-2 Wm-2
      (D) 1012 Wm-2
    • (B) 10-12 Wm-2
    • Q. 2  The frequency of Infrasonic wave is
    • (A) F > 20 Hz
      (B) f > 20KHz
    • (C) f < 20KHz
      (D) f < 20 Hz
    • (D) f < 20 Hz
    • Q. 3  The SONAR is used
    • (A) to remove the tumors from the body
      (B) to measure the depth of sea
    • (C) to produce the ultrasonic frequency
      (D) none of these
    • (B) to measure the depth of sea
    • Q. 4  The LASER can be produced by
    • (A) spontaneous emission
      (B) Induced absorption
    • (C) stimulated emission
      (D) Instantaneous emission
    • (C) stimulated emission
    • Q. 5  The conditions to be satisfied for Total Internal Reflection is
    • (A) n1 > n2, ø>øc
      (B) n1 < n2, ø>øc
    • (C) n1 > n2, ø<øc
      (D) n1 < n2, ø<øc
    • (A) n1 > n2, ø>øc
    • Q. 6  Which one is not correct for LASER?
    • (A) Highly monochromatic light
      (B) highly polychromatic light
    • (C) highly polarized light
      (D) highly directional light
    • (B) highly polychromatic light
    • Q. 7  Which one is not correct for Ultrasonic waves?
    • (A) Type of sound wave
      (B) longitudinal wave
    • (C) transverse wave
      (D) mechanical wave
    • (C) transverse wave
    • Q. 8  Fuel cell is a device that converts
    • (A) Chemical energy into electricity
      (B) solar energy into electricity
    • (C) sound energy into electricity
      (D) mechanical energy into electricity
    • (A) Chemical energy into electricity
    • Q. 9  Solar cells operate on the principle of
    • (A) Electrostriction effect
      (B) Magnetostriction effect
    • (C) Photovoltaic effect
      (D) Josephson effect
    • (C) Photovoltaic effect
    • Q. 10  SQUID is an application of
    • (A) Semiconducting materials
      (B) Nano materials
    • (C) Superconducting materials
      (D) Bio materials
    • (C) Superconducting materials
    • Q. 11  Superconducting materials are the type of
    • (A) Diamagnetic materials
      (B) Dielectric materials
    • (C) Ferromagnetic materials
      (D) Paramagnetic materials
    • (A) Diamagnetic materials
    • Q. 12  Which one is not having permanent dipoles in absence of magnetic field?
    • (A) Paramagnetic material
      (B) Ferromagnetic material
    • (C) Ferrimagnetic material
      (D) diamagnetic material
    • (A) Paramagnetic material
    • Q. 13  Dielectric materials are also termed as
    • (A) Conductors
      (B) semiconductors
    • (C) Insulators
      (D) superconductors
    • (C) Insulators
    • Q. 14  The S.I. Unit of Loudness is
    • (A) dB
      (B) Bel
    • (C) phon
      (D) OWU
    • (C) phon