oscillation
circular
rotational
rectilinear
Correct answer is B
Circular motion has uniform
I only
I & IV only
II only
III only
Correct answer is C
- Friction depends on the nature of the surfaces in contact
The lens illustrated above can best be described as a
converging meniscus
plano-convex
diverging meniscus
bi-convex
Correct answer is B
The diagram is that of a plano-convex lens; a type of converging lens.
0.125Hz
1.25Hz
7.50Hz
8.00Hz
Correct answer is B
10 complete oscillations = 8.0s
1 complete oscillation (period) = \(\frac{8}{10}\)s
Frequency = \(\frac{1}{period}\) = \(\frac{1}{0.8} = 1.25Hz\)
Which of the following factors does not increase the rate of evaporation of water in a lake?
Increase in the pressure of the atmosphere
Rise in temperature
Increase in the surface area of the lake
Increase in the speed of the wind
Correct answer is A
The rate of evaporation is increased by the lowering of atmospheric pressure and not its increase. Every other factor stands, for the increase of evaporation process.
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