Question
If the diameter of a sphere is 42 cm, find the total
surface area of the sphere.Solution
ATQ,
Given: Diameter = 42 cm
Radius: r = 42/2 =21 cm
Formula: 
Which of the following instruments is used to measure humidity?
Which one among the following statements is correct?Â
Which of the following indicator produces a pink colour in an alkaline solution?
A person standing on a trolley moving in a straight line throws a stone vertically upward, relative to himself, while facing in the direction of motion....
A black body at temperature 500 K emits radiation. If its temperature is doubled, by what factor does its emitted power increase?
In a concave mirror which of the following pair of position of object – position of image is correct?
I. At C - At C
II. At F – At Infinity
Which one among the following statements is not true for Mammals?
On the basis of which phenomenon does a Jet Engine work?
The instrument used to measure the speed of the wind is –
Division of Agricultural Meteorology at Pune was established in:
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