PHYSICS - MOCK - 02 Q1. Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium. Q2. A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What...

MATHEMATICS - MOCK - 01 Question 1: Let A and B be two finite sets having m and n elements respectively. Then the total number of mapping from A to B is (a) mn                      (b)...

PHYSICS - MOCK - 01 Q1: A student measured the length of a rod and wrote it as 3.50 cm. Which instrument did he use to measure it? (a) A screw gauge having 100 divisions in the circular scale and pitch as 1 mm (b) A screw gauge having 50...

CHEMISTRY - MOCK - 01 1. Number of atoms in the following samples of substances is the largest in : (1) 127.0g of iodine (2) 48.0g of magnesium (3) 71.0g of chlorine (4) 4.0g of hydrogen 2. The ratio of mass percent of C and H of...

Common Names of Chemical Compounds Common Name Chemical Compounds/Elements Chemical Formula Uses Baking Soda Sodium Hydrogen Carbonate or Sodium...

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