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Sample Questions–Physics b sc
Posted Date: 18 Jan 2008 Resource Type: Articles/Knowledge Sharing Category: General
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Posted By: piyush Member Level: Gold
Rating:  Points: 5
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Sample Questions–Physics
The Question Paper will contain two parts. Part A will consist of Multiple Choice
Questions and Part B will consist of Short Answer Questions. Some Sample
Questions are given below.
Part A
• A ball is thrown up vertically. Its acceleration at its highest point is
(a) 0 (b) g/2 downward (c) g downward (d) g/2 upward (e) g upward
• A body attached to an ideal spring is having a linear harmonic oscillation
about its equilibrium position with an amplitude of 1 cm. When it is 0.5
cm away from the equilibrium position the fraction of its total energy in the
form of kinetic energy is
(a) 1/3 (b) 3/8 (c) 1/2 (d) 2/3 (e) 3/4
• A container of fixed volume has n moles of an ideal gas. If the temperature
of the gas is doubled, the pressure will change by a factor of
(a) 2/nR (b) 2 (c) 2nR (d) 2/n (e) 2/R
• A string of length 6 m, fixed at both ends, supports a standing wave with a
total of 4 nodes. If the velocity of a transverse wave along the string is 40
m/s the frequency of the standing wave is
(a) 6.7 Hz (b) 10 Hz (c) 13.3 Hz (d) 20 Hz (e) 26.7 Hz
• In Young’s double-slit interference experience the difference is path lengths
of the light waves from the two slits at the center of the first bright fringe
above the central maximum is
(a) 0 (b) /4 (c) /2 (d) (e) 3/2
• The ionization energy of a single electron atom is 25 eV. When the electron
makes a transition from an excited state of energy -16 eV to the ground
state the energy released is
(a) 9 eV (b) 11 eV (c) 16 eV (d) 25 eV (e) 41 eV
• Compared to the parent nucleus, the daughter of a -decay has
(a) the same mass number but a greater atomic number
(b) the same mass number but a smaller atomic number
(c) a smaller mass number but the same atomic number
(d) a greater mass number but the same atomic number
(e) none of the above
• The missing particle in the nuclear reaction 21
H + 63
29Cu ! 64
30Zn + ? is
(a) proton (b) neutron (c) electron (d) positron (e) deuteron
Part B
• A particle of rest mass m0 is moving at a speed of 12
13c. What is its kinetic
energy?
• What is the force between two free electrons spaced 10-10 m apart?
• Assume that the electron has no spin. Then, in atoms there would be no
spin quantum number. If the Pauli exclusion principle still holds what would
be the Z-values for the first three univalent elements?
• The binding energy per nucleon for 238U is about 7.5 MeV, whereas it is
about 8.5 MeV for nuclei of half that mass. If a 238U nucleus were to split
into two equal-size nuclei, about how much energy would be released in the
process?
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