Photosynthetically active radiation comes under which of the following special wavelength:
Photosynthetically active radiation is the spectrum of light used by plants for photosynthesis. It is in the range of 400-700 nm.
A boat goes 60 km in upstream in 5 hours and takes 3 hours to complete a distance of 12 km in downstream. Find the speed of boat in still water.
The speed of a boat in still water is 11 times the speed of the stream. If the difference between the upstream and downstream speed of the boats is 20 k...
A ship, when moving against the current, can travel a distance of 240 km in 8 hours. If the ship's speed in calm waters is 40 km/hr, how many hours will...
A ferry takes 108 minutes to row to place B from another place A along the stream. The distance between place A and place B is 32.4 km. If the speed of ...
A boy can swim in water with a speed of 14 km/hr in still water. If the speed of the stream is 6 km/hr, what will be the time taken by the boy to cover ...
Speed of a boat in still water is 10 km/h while the speed of stream is ____ km/h. Total time taken by the boat to go 100 km upstream and 150 km downstre...
Sumit can swim 12 km upstream and 16 km downstream in 5 hours. If ratio of speed of stream to that of speed of Sumit in upstream is 1:2, then find the s...
The speed of a boat in still water is 16 km/hr. If the boat covers 180 km in upstream in 12 hours, then find the time taken by the boat to travel 170 km...
A boy can swim in water with a speed of 13 km/hr in still water. If the speed of the stream is 5 km/hr, what will be the time taken by the boy to cover ...
What is the difference between the mode and the meaning of the observations?
2,3,4, 5, 6, 7, 8, 12, 9, 12, 5, 12
