You have given four alternative answers for every question.Below question are important for MHT-CET Exam 2013.
1. A minute hand of a clock is 6 cm long. What is the linear speed of an ant sitting at the tip of minute hand ?
(a) 0.628 m/s (b) 62.8 x 10-2 m/s
(c) 1.047 x 10-2 m/s (d) 1.047 x 10-4 m/s
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2. The kinetic energy of a body moving in a vertical circle is
(A) same at all points on circle. (b) zero at all points on circle.
(C) different at different points on the circle. (D) Maximum at all points on circle
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3. The radius of the orbit of a planet is two times that of earth, the time period of the planet is
(a) 4.2 years (b) 2.8 years
(c) 5.6 years (d) 7 years
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4.The escape velocity for a satellite projected vertically upward from centre of earth is 11 km/s. If the satellite is projected at an angle 45° with the vertical, the escape velocity will be.
(a) 22 km/s (b) 11 km/s
(c) 5.5 km/s (d) 11 km/s
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5) Which one of the following substances is highly elastic ?
(a) Rubber (b) Glass
(c) Copper (d) Steel
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6 ) The rubber band has a spring constant of 20 N/m. If the band is cut in one place such that it forms a single long strand of elastic material, then it's new spring constant is
(a) 2.5 N/m (b) 10 N/m
(c) 5 N/m (d) 20 N/m
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7) Tiny insect can float and walk on the surface of water due to
(a) viscosity (b) gravitational force
(e) friction (d) surface tension
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8) What is the work done in blowing a soap bubble of radius 0.5 cm if surface tension of soap solution is 20 dyne/cm ?
(a) 12560 erg (b) 25112 erg
(c) 125.6 erg (d) 251.12 erg
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9) Two tuning forks having frequencies 500 Hz and 505 Hz are sounded together. What is the time difference between two successive maximum intensity ?
(a) 5 seconds (b) 1.01 seconds
(c) 0.2 seconds (d) 5 minutes
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10 ) By keeping the other setting same if Melde's experiment is arranged in parallel position from perpendicular position, then number of loops observed are
(a) doubled. (b) halved
(c) tripled. (d) remain same.
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