1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
The phase difference between the instantaneous velocity and acceleration of a particle executing simple harmonic motion is
A
$$\pi $$
B
0.707 $$\pi $$
C
zero
D
0.5 $$\pi $$
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
An engine has an efficiency of 1/6. When the temperature of sink is reduced by 62oC, its efficiency is doubled. Temperatures of the source is
A
37oC
B
62oC
C
99oC
D
124oC.
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
The total power dissipated in watt in the circuit shown here is

AIPMT 2007 Physics - Current Electricity Question 74 English
A
40
B
54
C
4
D
16
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A charged particle (charge q) is moving in a circle of radius R with uniform speed v. The associated magnetic moment $$\mu $$ is given by
A
$$qv{R^2}$$
B
$$qv{R^2}/2$$
C
qvR
D
qvR/2