List of practice Questions

A force \( \mathbf{F} = 2\hat{i} + b\hat{j} + \hat{k} \) is applied on a particle and it undergoes a displacement \( \mathbf{r} = \hat{i} - 2\hat{j} - \hat{k} \). What will be the value of \( b \), if the work done on the particle is zero?
Complete the analogy with one word from paragraph 6:
Advantage: benefit :: ________: anger
Complete the following sentence suitably with reference to paragraph 3.
One significant advantage of humour is that it helps one ....... .
A current-carrying loop can be considered as a magnetic dipole placed along its axis. Explain.
In a photoelectric experiment the incident photons have frequency \( \frac{3}{2} \nu \), where \( \nu \) is the threshold frequency of the material. What is the kinetic energy of the emitted electrons?
Show the shape of the characteristics of a diode.
If \[ \sum_{r=1}^{13} \frac{1}{\sin \frac{\pi}{4} + (r-1) \frac{\pi}{6}} \sin \frac{\pi}{4} + \frac{\pi}{6} = a \sqrt{3} + b, \quad a, b \in \mathbb{Z}, { then } a^2 + b^2 { is equal to:} \]
The acid formed when propyl magnesium bromide is treated with CO$_2$ followed by acid hydrolysis is:
A bar magnet has total length \( 2l = 20 \) units and the field point \( P \) is at a distance \( d = 10 \) units from the centre of the magnet. If the relative uncertainty of length measurement is 1%, then the uncertainty of the magnetic field at point P is:
bar magnet has total length 2l = 20 units
Population of Town A and B was 20,000 in 1985. In 1989, the population of Town A was 25,000, and Town B had 28,000. What will be the difference in population between the two towns in 1993?
An electric dipole of dipole moment \( 1.0 \times 10^{-12} \ \text{Cm} \) lies along the x-axis. An electric field of magnitude \( 2.0 \times 10^4 \ \text{NC}^{-1} \) is switched on at an instant in the region. The unit vector along the electric field is \( \frac{\sqrt{3}}{2} \hat{i} + \frac{1}{2} \hat{j} \). The magnitude of the torque acting on the dipole at that instant is:
Which organelle is primarily responsible for producing ATP in a cell?
Which region was known as the ‘nursery of the Bengal Army’ as many sepoys were recruited from there?
The approximate yield of ghee in kg from 100 kg buffalo milk is
In buffalo milk the percentage of water is -
100 kg of buffalo milk will yield __________ kg of Khoa

Match the LIST-I with LIST-II 

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Match the LIST-I with LIST-II 

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Match the LIST-I with LIST-II 

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For keeping liaison with CAC and to coordinate Codex activities in India, Food Safety and Standards Authority of India constitutes -
The sugar content of flavoured milk ranges between
Frequently used packaging materials in dairy industry are -
A. Polythene(PE)
B. LDPE
C. HDPE
D. Polypropylene(PP)
Choose the correct answer from the options given below:
Which of the following agencies does prescribe the level of treatment needed for a dairy plant?
Sweetened Dahi is also known as -
HACCP stands for -