A. increases with increase in age
B. decreases with increase in age
C. neither increases nor decreases
D. becomes infinite after 60 years
Related Mcqs:
- The least distance of distinct vision for a normal eye is_______________?
A. 15 cm
B. 25 cm
C. 30 cm
D. 40 cm - When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________?
A. 5m/s, 1m/s
B. 3m/s, 3m/s
C. 6m/s, 1m/s
D. 4m/s, 2m/s - The minimum distance between an object and its real image in a convex lens is_____________?
A. 2 f
B. 2.5 f
C. 3f
D. 4f - In optic fiber transmission the repeater are separated through a distance of __________ km in newer system?
A. 300km
B. 200km
C. 100km
D. 20km - The distance between any two consecutive crests or troughs is called____________________?
A. frequency
B. period
C. Wave length
D. phase difference - Minimum current required to produce a deflection of 1 mm on a scale at a distance of 1 meter is__________________?
A. 0.1 A
B. 1:00 AM
C. current sensitivity
D. 1 m A - Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?
A. Trajectory
B. Range
C. Firing level
D. Limit - If a wheel of radius r turns through an angle of 30° then the distance through which any point on its rim moves is______________?
A. π /3 x r
B. π/6 x r
C. V/30 x r
D. π / 180 x r - Total distance travelled by a bob of the simple pendulum in one vibration is equal to________________?
A. Amplitude
B. Square of the amplitude
C. 2 x amplitude
D. 4 x amplitude - The electric P.E of an electron in an orbit at a distance rn from the positive charge_____________?
A. Ke2/rn
B. Ke2/rn2
C. ÀKe2/rn
D. ÀKe2/rn2
