1
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
A diode detector is used to detect an amplitude modulated wave of $$60\% $$ modulation by using a condenser of capacity $$250$$ picofarad in parallel with a load resistance $$100$$ kilo $$ohm.$$ Find the maximum modulated frequency which could be detected by it. JEE Main 2013 (Offline) Physics - Semiconductor Question 187 English
A
$$10.62$$ $$MHz$$
B
$$10.62$$ $$kHz$$
C
$$5.31$$ $$MHz$$
D
$$5.31$$ $$kHz$$
2
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
The graph between angle of deviation $$\left( \delta \right)$$ and angle of incidence $$(i)$$ for a triangular prism is represented by
A
JEE Main 2013 (Offline) Physics - Geometrical Optics Question 171 English Option 1
B
JEE Main 2013 (Offline) Physics - Geometrical Optics Question 171 English Option 2
C
JEE Main 2013 (Offline) Physics - Geometrical Optics Question 171 English Option 3
D
JEE Main 2013 (Offline) Physics - Geometrical Optics Question 171 English Option 4
3
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
Two coherent point sources $${S_1}$$ and $${S_2}$$ are separated by a small distance $$'d'$$ as shown. The fringes obtained on the screen will be

JEE Main 2013 (Offline) Physics - Wave Optics Question 116 English
A
points
B
straight lines
C
semi-circles
D
concentric circles
4
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
In an $$LCR$$ circuit as shown below both switches are open initially. Now switch $${S_1}$$ is closed, $${S_2}$$ kept open. ($$q$$ is charge on the capacitor and $$\tau $$ $$=RC$$ is Capacitance time constant). Which of the following statement is correct ? JEE Main 2013 (Offline) Physics - Alternating Current Question 152 English
A
Work done by the battery is half of the energy dissipated in the resistor
B
$$t = \,\tau ,\,q = CV/2$$
C
At $$t = \,2\tau ,\,q = CV\left( {1 - {e^{ - 2}}} \right)$$
D
At $$t = \,2\tau ,\,q = CV\left( {1 - {e^{ - 1}}} \right)$$
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