Question

Match the column :

Which of the following option has the correct combination considering column-I and column-II.

• A. B $\to$ PS
• B. A $\to$ R
• C. D $\to$ Q
• D. C $\to$ S

Answer 1

The correct option is A B $\to$ PS

(A) $\to$ T; (B) $\to$ PS; (C) $\to$ T; (D) $\to$ PS

(A) For an $LC$ circuit,
$E=\frac{Q^2}{2C}\to$
As $E$ is independent of frequency, hence remains same.

(B) For photoelectric effect, $E=hf-\varphi$
So, if $f$ increases, $E$ increases and if $f$ decreases, $E$ decreases.

(C)Energy of oscillation
$E=\frac{1}{2}k{A}^2\to$
As $E$ is independent of frequency, hence remains same as $f$ changes.

(D) $E=\frac{\lambda }{4}\mu A^2{\omega }^2$
As $\omega =2\pi f\text{and}\lambda =\frac{v}{f},$
$E\propto f$
So, if $f$ increases, $E$ increases and if $f$ decreases, $E$ decreases.