61. 950 dyne = _______ newton
A. \(9.5\times 10^{-3}\)
B. \(95\times 10^{-5}\)
C. \(950\times 10^{-7}\)
D. \(9.5\times 10^{-4}\)
Answer : Option A
62. 100 picometer = _______
A. \(10^{-8}cm\)
B. \(10^{-7}m\)
C. \(10\times 10^{-6}\mu m\)
D. \(10\times 10^{-8}\mu m\)
Answer : Option C
63. 100 watt hour = _______ joule.
A. \(3.6\times 10^{5}J\)
B. \(3.6\times 10^{6}J\)
C. \(36\times 10^{5}J\)
D. \(36\times 10^{6}J\)
Answer : Option A
64. If x meter is a unit of length then area of \(1m^{2}=\ ?\)
A. \(x\)
B. \(x^{2}\)
C. \(x^{-2}\)
D. \(x^{-1}\)
Answer : Option C
Explanation :
Area = \(l^{2}\)
\(A = x^{2}m^{2}\)
\(1m^{2}=\frac{A}{x^{2}}=\frac{1}{x^{2}}=x^{-2}\)
65. 1 MeV = _______ eV
66. Wave length of light radiation 0.000015 m = _________
67. \(1^{\circ}=\ ?\)
68. 1 rad = _______
A. \(180^{\circ}\)
B. \(3.14^{\circ}\)
C. \(\left ( \frac{180}{\pi } \right )^{\circ}\)
D. \(\left ( \frac{\pi }{180} \right )^{\circ}\)
Answer : Option C
69. 1 g = _______ amu
A. \(6.02\times 10^{23}\)
B. \(6.02\times 10^{-23}\)
C. \(1.66\times 10^{-27}\)
D. \(1.66\times 10^{27}\)
Answer : Option A
Explanation :
\(1\ amu=1.66\times 10^{-27}kg=1.66\times 10^{-24}gm\)
\(1\ gm =6.023\times 10^{23}amu\)
70. 1 parsec = _______
A. \(10^{-15}m\)
B. \(1.496\times 10^{11}m\)
C. \(1.496\times 10^{15}m\)
D. \(3.08\times 10^{16}m\)
Answer : Option D