Physics GK Quiz

Q76. The number of waves per second in a sound is called ________ of that sound
(a) Velocity
(b) Frequency
(c) Displacement
(d) Acceleration

Q77. "God Particle" is
(a) Neutrino
(b) Higgs Boson
(c) Meson
(d) Positron

Q78. Boyle's law relates to
(a) Kinetic Theory of Gases
(b) Viscosity of Liquids
(c) Elasticity of Solids
(d) Plasticity of Solids

Q79. Flemings "Left hand Rule" is associated with the effect of
(a) Electric field on current
(b) Magnetic field on magnet
(c) Electric field on magnet
(d) Magnetic field on current

Q80. If electric resistance is to be decreased, then the number of resistance should be connected in ___________
(a) Series
(b) Parallel
(c) Mixed arrangement
(d) None of the above

Q81. Which of the following is not reversible
(a) Joule effect
(b) Peltier effect
(c) Seebeck effect
(d) Thomson effect

Q82. Which of the following is preferred for accelerating electrons
(a) Betatron
(b) Cyclotron
(c) Synchrotron
(d) Van de Graft Generator

Q83. Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum
(a) Barkla's experiment on scattering of X-rays
(b) Lamb-Rutherford experiment
(c) Geiger and Marsdens experiment on scattering of alpha particles
(d) Bunsen and Kirchhoff's experiment

Q84. Which of the following features of a tunnel diode is its drawback
(a) Extremely high frequency response
(b) Very wide temperature range of operations
(c) Instability due to negative resistance
(d) Very low power consumptions

Q85. Atomic packing factor of body centred cubic structure (bcc) is
(a) 0.63
(b) 0.68
(c) 0.69
(d) 0.73

Q86. Number of lattices in the orthorhombic system is
(a) 4
(b) 5
(c) 7
(d) 8

Q87. At constant pressure, the volume of a fixed mass of a gas is directly proportional to its absolute temperature. It is the statement of
(a) Boyle's Law
(b) Charle's Law
(c) Gay-Lussac's Law
(d) Avogadro's Law

Q88. Choose the correct answer : A thermodynamic state function is a quantity
(a) used to determine heat changes
(b) whose value is independent of path
(c) used to determine pressure-volume work
(d) whose value depends on temperature only

Q89. In uniform circular motion, the linear velocity perpendicular to
(a) radius
(b) force
(c) radius vector
(d) momentum

Q90. Red light has a wavelength of 7000 A°. In "nm" it is
(a) 7 nm
(b) 0.07 nm
(c) 70 nm
(d) 700 nm

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