ANS:D - 25143

"Hari did not run away."

ANS:A -

void fun(int p[][4])
{
}

void fun(int p[][4]){ } is the correct way to write the function fun(). while the others are considered only the function fun() is called by using call by reference.

ANS:A - the eyepiece plays no part in defining the line of sight

Line of Sight: It is line passing through the cross hair and optical centre of objective lens. However Eyepiece only clarifies the cross hair in diaphragm. Thus Eye piece plays no important role in defining the line of sight. Diaphragm, optical centre are part of the telescope and those are very important to observe the line of sight. According to D V GUPTA survey book. He says that line of sight is the line which passes through the optical centers of both glasses i.e. eyepiece & object glass towards the object. The line passing through Centre of cross hair and objective lense to cross staff called a line of sight. No matter of eye-piece. Passing through the intersection of crosshairs diaphragms and the optical center of object glass and its continuation. Axis of Telescope - Eyepiece to Optical.
Line of Sight - Diaphragm to Optical.

ANS:C - Induction

Induction wattmeter.

ANS:B - tunnel

Refractory bricks are usually dried in a tunnel dryer. Tunnel dryers are commonly used for drying various types of materials, including refractory bricks. In a tunnel dryer, the material to be dried is conveyed through a tunnel-like structure on a conveyor belt or other suitable means. Heat is applied to the material as it moves through the tunnel, allowing for efficient drying. This method ensures uniform drying and facilitates large-scale production of dried materials like refractory bricks.

ANS:C - N/m²

The unit of bulk modulus of elasticity for a liquid in SI units is N/m².

Explanation:

1. Bulk Modulus of Elasticity (K):
   • Bulk modulus is a measure of the compressibility of a substance when subjected to uniform pressure. It quantifies the resistance of a material to uniform compression.
   • For liquids, bulk modulus indicates how resistant the liquid is to being compressed or how much its volume changes under pressure.
2. SI Unit:
   • In the SI (International System of Units), the unit of pressure is the pascal (Pa), where 1 Pa=1 N/m21 \, \text{Pa} = 1 \, \text{N/m}^21Pa=1N/m2.
   • Therefore, bulk modulus, which is a ratio of stress to strain (both in pascals), has the unit of pascals (Pa).
3. Options Analysis:
   • N: Newton (N) is a unit of force.
   • N/m: Newton per meter (N/m) is a unit of linear density or force per unit length.
   • N/m²: Newton per square meter (N/m² or Pa) is the unit of pressure and also the unit for bulk modulus because it represents pressure per unit strain or change in volume.
   • N/m³: Newton per cubic meter (N/m³) is a unit of volumetric density.

Conclusion:

ANS:D - Jonas Salk

World Polio Day is celebrated to commemorate the birth anniversary of Jonas Salk.

ANS:A - Airtel Payments Bank

Airtel Payments Bank has introduced NCMC-enabled debit and prepaid cards in collaboration with NPCI, aligning with India's One Nation, One Card vision. These cards offer versatile payment options and enhanced security features, catering to various transaction needs of customers.

ANS:D - October 24

Every year on October 24, the United Nations day is celebrated.

ANS:A - October 19

Global Dignity Day is observed every year on the 3rd Wednesday 19 October 2022.