1
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
$${\left( {\sqrt {{I_1}} + \sqrt {{I_2}} } \right)^2}$$
2
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.
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is
A
$${1 \over 2}{\varepsilon _0}{E^2}$$
B
$${{{E^2}Ad} \over {{\varepsilon _0}}}$$
C
$${1 \over 2}{\varepsilon _0}{E^2}Ad$$
D
$${\varepsilon _0}EAd$$
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The electric potential at a point in free space due to charge Q coulomb is Q $$ \times $$ 1011 volts. The electric field at that point is
A
$$4\pi {\varepsilon _0}Q \times {10^{20}}$$ volt/m
B
12$$\pi $$0Q $$ \times $$ 1022 volt/m
C
$$4\pi {\varepsilon _0}Q \times {10^{22}}$$ volt/m
D
$$12\pi {\varepsilon _0}Q \times {10^{20}}$$ volt/m
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12