Question

A. ASSERTION AND REASONING QUESTIONS
(A) A true but Ris false
(B) Both A and Rare true and is the correct explanation of A
(C) Ais false but is true.
(D) Both A and Rare true but Ris not the correct explanation of A
(E) Both A and Rare false
01 A When lightning strikes, the sound is heard a little after the flash is seen
R: The velocity of light is greater than that of the sound.
02 A Two people on the surface of the moon cannot talk to each other
R. There is no atmosphere on moon.
03. A. Every vibrating body is a source of sound
P: All sounds are audible to us.
Q4 A: The sound which cannot be heard pleasantly is called noise.
R. The sound above 80 dB becomes painful.​

Answer 1

Answer:

Q3 every vibrating body is a source of sound