Which of the following is not a vector quantity?
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Which of the following is a renewable source of energy?
Find the position of the image formed by a concave mirror when the object is placed between P and F?
Which of the following waves cannot be polarised?
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.
Resistance switching is normally employed in
The color with the longest wavelength is
Each color has a different wavelength.
Red has the longest wavelength and violet has the shortest wavelength.
Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s
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