1
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

A force defined by $$F=\alpha t^2+\beta t$$ acts on a particle at a given time $$t$$. The factor which is dimensionless, if $$\alpha$$ and $$\beta$$ are constants, is:

A
$$\beta t / \alpha$$
B
$$\alpha t / \beta$$
C
$$\alpha \beta t$$
D
$$\alpha \beta / t$$
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

The diameter of a spherical bob, when measured with vernier callipers yielded the following values : $$3.33 \mathrm{~cm}, 3.32 \mathrm{~cm}, 3.34 \mathrm{~cm}, 3.33 \mathrm{~cm}$$ and $$3.32 \mathrm{~cm}$$. The mean diameter to appropriate significant figures is :

A
$$3.328 \mathrm{~cm}$$
B
$$3.3 \mathrm{~cm}$$
C
$$3.33 \mathrm{~cm}$$
D
$$3.32 \mathrm{~cm}$$
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

The mechanical quantity, which has dimensions of reciprocal of mass $$(\mathrm{M}^{-1})$$ is :

A
angular momentum
B
coefficient of thermal conductivity
C
torque
D
gravitational constant
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

The errors in the measurement which arise due to unpredictable fluctuations in temperature and voltage supply are :

A
Personal errors
B
Least count errors
C
Random errors
D
Instrumental errors
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