1
JEE Main 2016 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
In an experiment for determination of refractive index of glass of a prism by $$i - \delta ,$$ plot it was found thata ray incident at angle $${35^ \circ }$$, suffers a deviation of $${40^ \circ }$$ and that it emerges at angle $${79^ \circ }.$$ In that case which of the following is closest to the maximum possible value of the refractive index?
A
$$1.7$$
B
$$1.8$$
C
$$1.5$$
D
$$1.6$$
2
JEE Main 2016 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
An observer looks at a distant tree of height $$10$$ $$m$$ with a telescope of magnifying power of $$20.$$ To the observer the tree appears:
A
$$20$$ times taller
B
$$20$$ times nearer
C
$$10$$ times taller
D
$$10$$ times nearer
3
JEE Main 2016 (Offline)
MCQ (More than One Correct Answer)
+4
-1
Out of Syllabus
Change Language
For a common emitter configuration, if $$\alpha $$ and $$\beta $$ have their usual meanings, the incorrect relationship between $$\alpha $$ and $$\beta $$ is :
A
$$\alpha = {\beta \over {1 + \beta }}$$
B
$$\alpha = {{{\beta ^2}} \over {1 + {\beta ^2}}}$$
C
$${1 \over \alpha } = {1 \over \beta } + 1$$
D
$$\alpha = {\beta \over {1 - {\beta ^2}}}$$
4
JEE Main 2016 (Offline)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Choose the correct statement :
A
In amplitude modulation the amplitude of the high frequency carrier wave is make to vary in proportion to the amplitude of the audio signal.
B
In amplitude modulation the frequency of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
C
In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the amplitude of the audio signal.
D
In frequency modulation the amplitude of the high frequency carrier wave is made to vary in proportion to the frequency of the audio signal.
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