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Q 1. When
pheiridippides run from Marathon to Athans in
490 B.C. to
bring word of the Greek victory over the Persians on the basis of approximate
measurement, he ran at a speed of 23 ride per hour. The ride is an ancient
Greek unit for distance, as are the stadium and the pletheron. One ride
was defined to be 4 stadium, one stadium was defined to be 6 stadium and
in terms of SI unit, one pletheron is 30.8 m How fast did pheiridippides run in m/s ?
bring word of the Greek victory over the Persians on the basis of approximate
measurement, he ran at a speed of 23 ride per hour. The ride is an ancient
Greek unit for distance, as are the stadium and the pletheron. One ride
was defined to be 4 stadium, one stadium was defined to be 6 stadium and
in terms of SI unit, one pletheron is 30.8 m How fast did pheiridippides run in m/s ?
(a) 5.25 m/s (approx)
(b) 4.7 m/s (approx)
(c) 11.2 m/s (approx)
(d) 51.75 m/s (approx)
Q 2. One
light year is defined as the distance traveled by light in
one year. The speed of light is 3×108 m/s. The same in metre is :
one year. The speed of light is 3×108 m/s. The same in metre is :
(a) 3×1012 m
(b) 9.461×1015 m
(c) 3×1015 m
(d) none of these
Q 3. The acceleration of a car is 10 mile per
hour second.
The same in ft/s2 is :
The same in ft/s2 is :
(a) 1.467 ft/s2
(b) 14.67 ft/s2
(c) 40 ft/s2
(d) none of these
Q 4. One
slug is equivalent to 14.6 kg. A force of 10 pound is applied
on a body of one kg. The acceleration of the body is :
on a body of one kg. The acceleration of the body is :
(a) 44.5 m/s2
(b) 4.448 m/s2
(c) 44.4 ft/s2
(d) none of these
Q 5. The
speed of light in vacuum is 3×108 m/s. How many nano second
does it take to travel one metre in a vacuum ?
does it take to travel one metre in a vacuum ?
(a) 8 ns
(b) 10/3 ns
(c) 3.34 ns
(d) none of these
Q 6. The
time taken by an electron to go from ground state to excited
state is one shake (one shake = 10-8 s). This time in nanosecond will be :
state is one shake (one shake = 10-8 s). This time in nanosecond will be :
(a) 10 ns
(b) 4 ns
(c) 2 ns
(d) 25 ns
Q 7. The
time between human heart beat is 8×10-1 second. How many
heart beats are measured in one minute ?
heart beats are measured in one minute ?
(a) 75
(b) 60
(c) 82
(d) 64
Q 8. The age of the universe is 5×1017
second. The age of universe in year is :
(a) 158 × 106
(b) 158 × 109
(c) 158 × 108
(d) 158 × 1011
Q 9. Assuming
the length of the day uniformly increase by 0.001 second
per century. The net effect on the measure of time over 20 centuries is :
per century. The net effect on the measure of time over 20 centuries is :
(a) 3.2 hour
(b) 2.1 hour
(c) 2.4 hour
(d) 5 hour`
Q 10. The
number of molecules of H2O in 90 g of water is :
(a) 36.5 × 1023
(b) 41.22× 1023
(c) 27.2 × 1023
(d) 3011× 1023
Q 11. The mass
of earth is 5.98 × 1024 kg. The average atomic weight of
atoms that make up Earth is 40 u. How many atoms are there in Earth ?
atoms that make up Earth is 40 u. How many atoms are there in Earth ?
(a) 9 × 1051
(b) 9 × 1049
(c) 9×1046
(d) 9×1055
Q 12. One amu
is equivalent to 931 MeV energy. The rest mass of electron
is 9.1 ×10-31 kg. The mass equivalent energy is (Here 1 amu = 1.67 × 10-27 kg)
is 9.1 ×10-31 kg. The mass equivalent energy is (Here 1 amu = 1.67 × 10-27 kg)
(a) 0.5073 MeV
(b) 0.693 MeV
(c) 4.0093 MeV
(d) none of these
Q 13. One
atomic mass unit in amu = 1.66 × 10-27 kg. The atomic weight
of oxygen is 16. The mass of one atom of oxygen is :
of oxygen is 16. The mass of one atom of oxygen is :
(a) 26.56 × 10-27 kg
(b) 10.53× 10-27 kg
(c) 74× 10-27 kg
(d) 2.73× 10-27 kg
Q 14. One horse power is equal to :
(a) 746 watt
(b) 756 watt
(c) 736 watt
(d) 766 watt
Q 15. if E = mc2 where, m = mass of the
body, c = speed of light Guess
the name of physical quantity E :
the name of physical quantity E :
(a) Energy
(b) Power
(c) Momentum
(d) none of these
Q 16. One
calorie of heat is equivalent to 4.2 J. One BTU (British thermal unit)
is equivalent to 1055J. ?The value of one BTU in calorie is :
is equivalent to 1055J. ?The value of one BTU in calorie is :
(a) 251.2 cal
(b) 200 cal
(c) 263 cal
(d) none of these
Q 17. The
value of universal gas constant is R = 8.3 J/kcal/mol. The value of R
in atmosphere litre per kelvin/mol is :
in atmosphere litre per kelvin/mol is :
(a) 8.12 atm litre / K mol
(b) 0.00812 atm litre / K mol
(c) 81.2 atm litre / K mol
(d) 0.0812 atm litre / K mol
Q 18. Refer the data from above question. The value
of R in calorie per °C mol is
:
(a) 2 cal / mol °C
(b) 4 cal / mol °C
(c) 6 cal / mol °C
(d) 8.21 cal / mol °C
Q 19. Electron
volt is the unit of energy ( 1 eV = 1.6 × 10-19). In H-atom,
the binding energy of electron in first orbit is 13.6 eV. The same in joule (J) is :
the binding energy of electron in first orbit is 13.6 eV. The same in joule (J) is :
(a) 10 × 10-19 J
(b) 21.76 × 10-19 J
(c) 13.6 × 10-19 J
(d) none of these
Q 20. 1 mm of
Hg pressure is equivalent to one torr and one torr is equivalent to
133.3 N/m2. The atmospheric pressure in mm of Hg pressure is :
133.3 N/m2. The atmospheric pressure in mm of Hg pressure is :
(a) 70 mm
(b) 760 mm
(c) 3.76 mm
(d) none of these
Q 21. One bar is equivalent to 105 N/m2.
The atmosphere pressure is
1.013 ×105 N/m2. The same in bar is :
1.013 ×105 N/m2. The same in bar is :
(a) 1.88 bar
(b) 1.013 bar
(c) 2.013 bar
(d) none of these
Q 22. 1 revolution is equivalent to 360°. The value of revolution per minute is :
(a) 2p rad/s
(b) 0.1047 rad/s
(c) 3.14 rad/s
(d) none of these
Q 23. If v = velocity of a body, c = speed of
light, Then the dimensions of v/c is :
(a)
[M0 L0 T0 ]
(b)
[M L T-1 ]
(c)
[M L2 T-2 ]
(d) none of these
Q 24. The
expression for centripetal force depends upon mass of body,
speed of the body and the radius of circular path. Find the expression
for centripetal force:
speed of the body and the radius of circular path. Find the expression
for centripetal force:
(a)
(b)
(d) 
Q 25. The
maximum static friction on a body is F = m N. Here, N = normal reaction
force on the body m = coefficient of static friction. The dimensions of m is :
force on the body m = coefficient of static friction. The dimensions of m is :
(a)
[M L T-2 ]
(b)
[M0 L0 T0 q-1 ]
(c) dimensionless
(d) none of these
Q 26. What are dimensions of Young’s modulus of
elasticity ?
(a) [M L-1 T-2 ]
(b)
[M L T-2 ]
(c)
[M L T-1 ]
(d) none of these
Q 27. If F = 6
p na rb vc, where, F = viscous
force, n = coefficient of viscosity,
r = radius of spherical body, v = terminal velocity of the body Find the
values of a, b and c :
r = radius of spherical body, v = terminal velocity of the body Find the
values of a, b and c :
(a) a = 1, b = 2, c = 1
(c) a = 2, b = 1, c = 1
(d) a = 2, b = 1, c = 2
Q 28. The surface tension is T = F/l, then the
dimensions of surface tension is :
(a) [M L T-2 ]
(b)
[M T-2 ]
(c)
[M0 L0 T0 ]
(d) none of these
Q 29. A gas
bubble from an explosion under water oscillates with a time period T
, depends upon static pressure P, density of water ‘p’ and the total energy of
explosion E. Find the expression for the time period T
(where, k is a dimensionless constant.):
, depends upon static pressure P, density of water ‘p’ and the total energy of
explosion E. Find the expression for the time period T
(where, k is a dimensionless constant.):
(a) T = kP-5/6 p1/2 E1/3
(b) T = kP-4/7 p1/2 E1/3
(c) T = kP-5/6 p1/2 E1/2
Q 30. The dimensions of heat capacity is :
(a) [L2 T-2 q-1 ]
(b)
[M L2 T-2 q -1 ]
(c)
[M-1 L2 T-2 q-1 ]
(d) none of these
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