A. greater than one meter
B. less than one meter
C. one meter
D. a foolish question
Related Mcqs:
- The relativistic energy E is equivalent to relativistic mass given by_______________?
A. Ec2
B. E/c2
C. E/c
D. c2/E - A convex lens of focal length f1 and a concave lens of focal length f2 are placed in contact. The focal length of the combination is_____________?
A. f2 + f1
B. f2 – f1
C. f1f2/f2+f1
D. f1f2/f1-f2 - The speed of the fluid is maximum in the venturi meter at_______________?
A. Convergent duct
B. Divergent duct
C. Throat
D. None of these - Three students measured the length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is a correct record ?
A. Only (i)
B. Only (ii)
C. Only (iii)
D. Both (i) and (ii) - The number of significant figures in the length of a bar 6200mm measured by meter rod is_______________?
A. 4
B. 3
C. 2
D. None of these - If a car moves with a uniform speed of 2 ms-1 in a circle of radius 0.4. Its angular speed is______________?
A. 4 rad. S-1
B. 5 rad. S-1
C. 1.6 rad. S-1
D. 2.8 ms-1 - A train is moving with a speed of 100mph. What will be its speed in m/s.?
A. 45 m/s
B. 90 m/s
C. 100 m/s
D. 120 m/sSubmitted by: Zahid Jagirani
- The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is________________?
A. π
B. 3π
C. 6π
D. 12π - A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber ?
A. 2×108 Nm-2
B. 5×106 Nm-2
C. 0.5×10-6 Nm-2
D. 0.2×10-6Nm-2 - A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is____________________?
A. (F1+F2) (121+122)
B. (F1+F2) (122-112)
C. (F1+F2) (12-11)
D. (F1+F2) (12-11)
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