Question
Given below are two statements, one is labelled as
Assertion A and other is labelled as Reason R Assertion A: The temperature increases with increasing height in the stratosphere. Reason R: Ozone absorbs ultra violet radiation in the stratosphere and makes it warm. In light of the above statements, choose the correct answer from the options given belowSolution
Both A and R are true and R is the correct explanation of A Ozone layer is found in the stratosphere at the height of 20 km and is responsible for trapping the heat energy.
Pipes A, B, and C can fill a tank in 10 hours, 5 hours, and 20 hours respectively. If the efficiencies of pipes A and B are each reduced by 50% of their...
Pipe ‘A’ and pipe ‘B’, together can fill 20% of a tank in 6 hours while pipe ‘C’ takes 35 hours to empty it. ...
- Pipes ‘X’ and ‘Y’ alone can fill a tank in 12 minutes and 18 minutes, respectively, while pipe ‘Z’ can empty the same tank in 36 minutes. If al...
If a tank can be filled by a tap in 10 hours, but due to an outlet, it actually takes 5 hours longer to fill the tank, find the duration in which the o...
Pipe A can fill a tank in 45 minutes while pipe B can fill it in ____ minutes. There’s a leak in the tank which can empty it in _____minutes. When bot...
If a tank can be filled by a tap in 16 hours, but due to an outlet, it actually takes 4 hours longer to fill the tank, find the duration in which the ou...
An inlet pipe can fill an empty tank in 18 minutes whereas an outlet pipe can empty the fully filled tank in 27 minutes. Find the time taken by both the...
P, Q and R three pipes connected to a tank. P and Q together fill the tank in 30 hours, Q and R together fill the tank in 40 hours. P and R together fil...
Pipe ‘A’ takes 40 minutes to fill a tank. Pipe ‘B’ takes 50 minutes to empty the same tank. If pipe ‘B’ is opened 21...
Tap A is 50% more efficient than tap B. Both the taps together can fill the tank in 9 hours. Find the time taken by tap C, which is 25% more efficient ...
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