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French President Emmanuel Macron will be the chief guest at the Republic Day celebrations next January, the Ministry of External Affairs (MEA) announced. Mr. Macron has acknowledged the invite and announced that he will be here on January 26 for the festivities.
Speed of sound in air is unaffected by change in :
The instrument which uses sound waves to measure the depth of oceans is –
I threw a ball horizontally on the road and after covering certain distance, the ball stopped due to
The apparatus used in the refrigeration is
Which of the following is the time taken for one complete oscillation of a sound wave in the density of the medium?
Which of the following is the best fire-extinguisher?
Einstein was awarded Nobel Prize for –
The waves which are less than 20Hz are known as
Where is the gravitational acceleration zero?
In gymnastics, which event is performed on a large floor mat?
