1) Two organ pipes produce 5 beats per second at 10⁰C.When the temperature rises to 20⁰C the number of beats is

A) = 5

B) < 5

C) > 5

D) none

2)The magnetic field perpendicular to the plane of a conducting ring of radius r changes at the rate dB/dt.then

are all the points on the ring at same potential?

(answer given is yes! I want xplanation for this)

3)For the circuit shown in the figure the current through the inductor is 1.6 A, while current through the condenser is 0.4 A.Then

A) the current drawn from generator is I =2(2)^1/2 A

B) w = 1/(LC)^1/2

C) I = 2.2 A

D) I = 2.0 A

for the first question.. it is >5 because  more heat.. more energy.. more vibrations..

if i am wrong .. plz.. correct me...

Q3.                    I=1.6A+0.4A=2.0A

              So,the answer is d.