1
JEE Main 2015 (Offline)
+4
-1
Match List - $${\rm I}$$ (Fundamental Experiment) with List - $${\rm II}$$ (its conclusion) and select the correct option from the choices given below the list:

A
$$A - ii;\,\,B - i,\,\,C - iii$$
B
$$A - iv;\,\,B - iii,\,\,C - ii$$
C
$$A - i;\,\,B - iv,\,\,C - iii$$
D
$$A - ii;\,\,B - iv,\,\,C - iii$$
2
JEE Main 2013 (Offline)
+4
-1
The anode voltage of a photocell is kept fixed. The wavelength $$\lambda$$ of the light falling on the cathode is gradually changed. The plate current $$I$$ of the photocell varies as follows :
A
B
C
D
3
AIEEE 2012
+4
-1
This question has Statement 1 and Statement 2. Of the four choices given after the statements, choose the one that best describes the two statements.

Statement 1 : Davisson - Germer experiment established the wave nature of electrons.

Statement 2 : If electrons have wave nature, they can interfere and show diffraction.
A
Statement 1 is true, Statement 2 is false
B
Statement 1 is true, Statement 2 is true, Statement 2 is the correct explanation for Statement 1.
C
Statement 1 is true, Statement 2 is true, Statement 2 is not the correct explanation of Statement 1.
D
Statement 1 is false, Statement 2 is true.
4
AIEEE 2011
+4
-1
This question has Statement - $$1$$ and Statement - $$2$$. Of the four choices given after the statements, choose the one that best describes the two statements.

Statement - $$1$$ : A metallic surface is irradiated by a monochromatic light of frequency $$v > {v_0}$$ (the threshold frequency). The maximum kinetic energy and the stopping potential are $${K_{\max }}$$ and $${V_0}$$ respectively. If the frequency incident on the surface is doubled, both the $${K_{\max }}$$ anmd $${V_0}$$ are also doubled.
Statement - $$2$$ : The maximum kinetic energy and the stopping potential of photoelectrons emitted from a surface are linearly dependent on the frequency of incident light.

A
Statement - $$1$$ is true, Statement - $$2$$ is true, Statement - $$2$$ is the correct explanation of Statement - $$1$$.
B
Statement - $$1$$ is true, Statement - $$2$$ is true, Statement - $$2$$ is not the correct explanation of Statement - $$1$$.
C
Statement - $$1$$ is false, Statement - $$2$$ is true.
D
Statement - $$1$$ is true, Statement - $$2$$ is false.
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Physics
Mechanics
Electricity
Optics
Modern Physics
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