List of practice Questions

Which city of Punjab is famous for manufacturing sports goods?
Which one is not a component of Physical Fitness?
Match the following:
\begin{tabbing} \hspace{7cm} \= \hspace{1cm} \= \hspace{2cm} \= \hspace{2cm} \kill Iron Industry \> (i) \> Psychology \>
Study of behaviour \> (ii) \> Siderosis \>
Interval training method \> (iii) \> Incomplete Rest \>
\end{tabbing}
Adolescence period ranges between 13 to 18 years of age.
True/False
Sprain is an injury of:
A cell of emf \( E \) and internal resistance \( r \) is connected across a resistor of variable resistance \( R \). Show graphically the variation of
(a) the terminal voltage across the cell,
(b) the current supplied by the cell,
with \( R \) as it is increased from 0 to the maximum value.
A quadratic polynomial having zeroes 0 and -2, is
If the mode of some observations is 10 and sum of mean and median is 25, then the mean and median respectively are
A conductor of length \( l \) is connected across an ideal cell of emf \( E \). Keeping the cell connected, the length of the conductor is increased to \( 2l \) by gradually stretching it. If \( R \) and \( R' \) are the initial and final values of resistance, and \( v_d \) and \( v'_d \) are the initial and final values of drift velocity, find the relation between (i) \( R' \) and \( R \) and (ii) \( v'_d \) and \( v_d \).
Ajay Ltd. forfeited 100 shares of Rs 10 each for non-payment of first call of Rs 1 per share and second and final call of Rs 3 per share. The minimum price per share at which these shares can be reissued will be:

Assertion : In Bohr model of hydrogen atom, the angular momentum of an electron in \( n \)th orbit is proportional to the square root of its orbit radius \( r_n \)

Reason (R): According to Bohr model, electron can jump to its nearest orbits only.

Assertion (A): The deflection in a galvanometer is directly proportional to the current passing through it. 

Reason (R): The coil of a galvanometer is suspended in a uniform radial magnetic field.

Four point charges \( Q \) each, are held at the four corners of a square of side \( l \). The amount of work done in bringing a charge \( Q \) from infinity to the centre of the square will be:
If $a\sec\theta + b\tan\theta = m$ and $b\sec\theta + a\tan\theta = n$, prove that $a^2 + n^2 = b^2 + m^2$.

Given that $\sin \theta + \cos \theta = x$, prove that $\sin^4 \theta + \cos^4 \theta = \dfrac{2 - (x^2 - 1)^2}{2}$.

Density of 3 M NaCl solution is 1.25 g/mL. The molality of the solution is:
The focal length of a concave mirror in air is \( f \). When the mirror is immersed in a liquid of refractive index \( \frac{3}{5} \), its focal length will become:
A coil of an AC generator, having 100 turns and area 0.1 m² each, rotates at half a rotation per second in a magnetic field of 0.02 T. The maximum emf generated in the coil is:
Nidhi received simple interest of ₹1,200 when she invested ₹x at 6% per annum and ₹y at 5% per annum for 1 year. Had she invested ₹x at 3% per annum and ₹y at 8% per annum for that year, she would have received simple interest of ₹1,260.Find the values of x and y.
Two statements are given below. They are Assertion (A) and Reason (R). Read both the statements carefully and choose the correct option:
Assertion (A): All manufacturing industries are associated with raw materials.
Reason (R): Resources are essential for human survival.
Which of the following statements are correct related to mining? Choose the correct option:
(i) In ancient times minerals were used to make tools and weapons.
(ii) All developed countries are extracting more minerals for their development.
(iii) The actual development of mining began with the industrial revolution.
(iv) There are many stages in the discovery of minerals.
Identify the main characteristics of quaternary activity from the following:
Arrange the following airports of Asia from west to east as per their locations and choose the correct option:
(i) Beijing
(ii) Tokyo
(iii) Aden
(iv) Mumbai
The exported items by a port is first brought from different countries. This port is known as ______.
Arrange the following oil refineries of India from south to north direction as per their locations and choose the correct option:
(i) Mumbai
(ii) Kochi
(iii) Kayali
(iv) Mangaluru