Question

Phy model paper 9th class first will be brainly

Answer 1

physics modal paper nahi aata

Answer 2

Q. (a) What is reverberation? How is different from echo?
(b) What type of sound waves are produced before the main shock wave of an earthquake?


Q. (a) State the Archimedes’ principle.
(b) An iron ball of mass 5 kg and density 5000 kg m−3 is completely immersed in water. Calculate the buoyant force acting on the ball. (Given, Density of water = 1000 kg/m3 and g = 10 m/s2)


Q. 10 bulbs of 50 W each, are being used for 6 hours a day along with 5 bulbs of 100 W each, for 2 hours a day. How many `units' (kWh) of electrical energy are consumed in one day by all bulbs together.
.
.
I have this questions if it is helpful ask me for more questions