Electricity
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Semiconductor Electronics
MCQ (Single Correct Answer)
1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The wave described by y = 0.25 sin(10$$\pi $$x $$-$$ 2$$\pi $$t), where x and y are in metres and t in seconds, is a wave travelling along the
A
+ve x direction with frequency 1 Hz and wavelength $$\lambda $$ = 0.2 m.
B
$$-$$ve x direction with amplitude 0.25 m and wavelength $$\lambda $$ = 0.2 m.
C
$$-$$ve x direction with frequency 1 Hz.
D
+ve x direction with frequency $$\pi $$ Hz and wavelength $$\lambda $$ = 0.2 m.
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Two periodic waves of intensities $$I$$1 and $$I$$2 pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is
A
$${\left( {\sqrt {{I_1}} - \sqrt {{I_2}} } \right)^2}$$
B
$$2\left( {{I_1} + {I_2}} \right)$$
C
$${{I_1} + {I_2}}$$
D
$${\left( {\sqrt {{I_1}} + \sqrt {{I_2}} } \right)^2}$$
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
A point performs simple harmonic oscillation of period T and the equation of motion is given by x = a sin($$\omega $$t + $$\pi $$/6). After the elapse of what fraction of the time period the velocity of the point will be equal to half of its maximum velocity?
A
T/3
B
T/12
C
T/8
D
T/6
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
A transverse wave propagating along x-axis is represented by y(x, t) = 8.0 sin (0.5 $$\pi $$x $$-$$ 4$$\pi $$t $$-$$ $$\pi $$/4) where x is in metres and t is in seconds. The speed of the wave is
A
8 m/s
B
4$$\pi $$ m/s
C
0.5$$\pi $$ m/s
D
$$\pi $$/4 m/s.
NEET Subjects