Which one among the following is not an electromagnetic wave?
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Find the acceleration (in m/s2) of a body which accelerates from 10 m/s to 20 m/s in 4 seconds.
A sound wave has a frequency of 4 kHz and a wavelength of 40 cm. The time taken by the sound wave to travel a distance of 3.2 km is
Who proposed Continental drift theory?
1 m/s equals ____________ km/hr
If speed of rotation of the earth increases, the weight of the body
The color with the longest wavelength is
Each color has a different wavelength.
Red has the longest wavelength and violet has the shortest wavelength.
A Sonar of a ship sends sounds waves of speed 1600 m/s. These waves are reflected back by the ocean floor in 4 seconds. Find the depth (in m) of the ocean floor.
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