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...