NEET-UG 2024: Exam Overview

If the pressure $P$ of a gas and its density $\rho$ are known, which of the following expressions has the same dimensions as velocity $v$?

Which of the following pairs of quantities have different dimensions?

The density of a material in the CGS system is $8 \frac{g}{cm^3}$. If a new system of units is defined where the unit of length is $5 \text{ cm}$ and the unit of mass is $20 \text{ g}$, what is the density of the material in this new system?

Given $V = (10 \pm 0.1) \text{ volts}$ and $i = (5 \pm 0.2) \text{ amps}$, calculate the percentage error in the resistance $R$ calculated using Ohm's law.

The circular head of a screw gauge is divided into 200 divisions and moves 1 mm ahead in two revolutions. Determine the pitch and least count of the screw gauge.

Given the equation $F = a \sqrt{x} + bt^2$, where $F$ is force, $x$ is distance, and $t$ is time, find the dimensions of $\frac{a}{b}$.

What is the dimensional formula for the viscosity of a liquid?

In measurement, zero error falls under which category?

How many significant figures are there in the number 0.0310?

In the expression $y = \frac{a^2}{b^3}$, if the percentage error in $a$ is 4% and in $b$ is 2%, what is the percentage error in $y$?

In the expression $Y = \frac{a^x}{b^y}$, the percentage errors in $a$ and $b$ are 1% and 2% respectively. If the overall percentage error in $Y$ is 5%, what could be the values of x and y?

If $V = At + \frac{B}{t + C}$ is dimensionally correct, where $V$ is velocity and $t$ is time, what are the dimensions of $AB^2$?

If the units of mass (M) and length (L) are doubled, how is the unit of kinetic energy affected?

At what temperature on the Celsius scale will the reading on the Fahrenheit scale be double the Celsius reading?

A steel tape measures accurately at 20°C. If it reads 25 cm when measuring the length of a wooden rod at 0°C, what can be said about the real length of the rod?

Which of the following sets contains quantities with different dimensions?

What is the ratio among the linear expansion coefficient $(\alpha)$, areal expansion coefficient $(\beta)$, and volume expansion coefficient $(\gamma)$ of a solid?

What is the dimension of electric current, given that $Q$ represents electric charge?

When a body falls freely, its velocity changes according to the equation $v = g^p h^q$, where $g$ is the acceleration due to gravity and $h$ is the height. What are the values of $p$ and $q$?

How many significant figures are there in the numbers 23.023, 0.0003, and $2.1 \times 10^{-3}$ respectively?

If Energy (E), Velocity (V) and Time (T) are chosen as the fundamental quantities. What is the dimensional formula of surface tension?

When a copper ball is heated, in which of the following will the percentage increase be largest?

At what temperature will the Fahrenheit and Kelvin scales give the same reading?

Water is heated from 0°C to 10°C. How does its volume change?

The volume expansion coefficient of mercury is $180 \times 10^{-6} /\degree C$. What is its linear expansion coefficient?

What happens to the density of a material during heating?

The coefficients of linear expansion for brass and steel are $\alpha_1$ and $\alpha_2$, respectively. If rods of brass and steel with lengths $l_1$ and $l_2$ respectively, have a difference in length that remains constant at all temperatures when they are at 0°C, which condition holds?

Choose the correct expression about thermal strain.

The volume of a metallic sphere increases by 0.24% when its temperature is raised by 40°C. What is the coefficient of linear expansion of the metal?

If $\alpha, \beta$, and $\gamma$ are the coefficients of linear, superficial, and volume expansion respectively, which of the following relationships holds true?

A faulty thermometer has its lower and upper fixed points at 5°C and 105°C. If this thermometer reads 25°C, what is the actual temperature?

An iron rod is fixed between two rigid walls and then heated. Which of the following statements is most accurate?

In a Vernier caliper, one main scale division is $x$ cm and $n$ divisions of the Vernier scale coincide with $(n-1)$ divisions of the main scale. What is the least count (in cm) of the caliper?

The graph AB shown in the figure represents the temperature of a body in degrees Celsius vs degrees Fahrenheit. Calculate the slope of the line AB:

By what instrument does one measure the temperature of the sun?

The percentage errors in the measurement of mass and speed are 2% and 3%, respectively. What is the maximum percentage error in the estimation of kinetic energy?