MCQ_SINGLE

A photon and an electron, each of 20 eV energy, move in free space. The ratio of linear momentum of electron $p_{e}$ to that of photon $p_{Ph}$, $\frac{p_{e}}{p_{Ph}}$ is [Take speed of light $=3\times10^{8}ms^{-1}$ charge of electron $=-1.6\times10^{-19}C$ and mass of electron $=9\times10^{-31}$ kg]

MCQ_SINGLE

Which of the following statements are Correct? (a) Energy flow from producers to consumers is unidirectional (b) Energy pyramid can never be inverted (c) Transfer of energy follows the 1% law Choose the correct answer from the options given below :

MCQ_SINGLE

Two moles of an ideal gas undergo free expansion from 10 L to 100 L at 300 K. The values of $\Delta S_{system}$ and $\Delta S_{surroundings}$ are (R is universal gas constant)

MCQ_SINGLE

One of the products formed in the following reaction is [Image Placeholder]

MCQ_SINGLE

Arrange the following compounds in the increasing order of polarity: A. $CH_{3}CH_{2}OCH_{2}CH_{3}$, B. $CH_{3}CH_{2}OH$, C. $CH_{3}COCH_{3}$, D. $CH_{3}COOH$. Choose the correct answer from the options given below.

View All Questions