The distance covered by a body in time t starting from rest is__________________?
The distance covered by a body in time t starting from rest is__________________?
A. at2/2
B. Vt
C. a2t/2
D. at2
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A man lifts vertically a weight of 40kg through 1m in 10s; while a chile lifts vertically a weight of 10kg through a distance of 1m in 1s. What will be correct inference ?
A man lifts vertically a weight of 40kg through 1m in 10s; while a chile lifts vertically a weight of 10kg through a distance of 1m in 1s. What will be correct inference ?A. man does more work than child
B. child does more work than man
C. both do the same amount of work
D. it is a foolish questionWhich of the following statements is true when we see ‘rainbow’ ?
Which of the following statements is true when we see ‘rainbow’ ?A. We face sun and raindrops
B. The Sun remains behind us and we face raindrops
C. In light rainfall, we face Sun
D. The sky remains clear and the sun is at lower position in the skyThe blue colour of the sky is due to___________________?
The blue colour of the sky is due to___________________?A. diffraction
B. reflection
C. polarization
D. scatteringIn p-n-p transistor the collector current is________________?
In p-n-p transistor the collector current is________________?A. equal to emitter current
B. slightly less than emitter current
C. greater than emitter current
D. any of aboveIn vibratory motion_________________?
In vibratory motion_________________?A. P.E. remains constant
B. K.E. remain constant
C. total energy remains constant
D. total momentum remains constantMirage is an example of ___________?
Mirage is an example of ___________?A. reflection of light
B. refraction of light
C. Refraction and total internal reflection of light
D. Scattering of light