Question

SECTION-A [15marks]
(Answer all the questions)
uestion?.
Ell in the blanks:
[1x5=5]
a)
energy possessed by an object is directly proportional to its height above the ground level.
b) In an oscillating pendulum, remains constant at all positions during its oscillations.
c) Pitch depends on
d) The constant hearing of sound of level above can cause headache and permanent damage
to the ears of the listener.
e
usually means relative density with respect to the water.
estion 2.
oose the correct answer:
[1x5=5]
a) Loudness of sound is measured in
i) joule
ii) watt
iii) decibel
iv) hertz.
b) Which of the characteristics of sound helps us to differentiate between two sounds with same pitch
and loudness?
i) Loudness
ii) Timbre
iii) Pitch
iv) Amplitude.
c) When a liquid or a gas is heated, its density
i) decreases
ii) increases
iii) remains unchanged
iv) may increase or decrease.
of moroury in 12600 kalm3
It relativo doncity is​

Answer 1

Answer:

plz hindi me bolo na muze samaz nahi aaya hai