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The compressibility of a gas is less than unity at STP. Therefore: (A) Vm greater than 22.4 L (B) Vm less than 22.4 L (C) Vm equal to 22.4 L (D) Vm equal to 44.8 L

For an Ideal gas, PV = nRT Z = 1 Since, compressibility (Z) = pV/nRT for Z less than unity... View Article

Use a suitable identity to get following products (2y+5) (2y+5)

Given (2y + 5)(2y + 5) = (2y + 5)2 Using Identity (a + b)2 = a2 + 2ab +... View Article

A guy wire attached to a vertical pole of height 18 m is 24 m long and has a stake attached to the other end. How far from the base of the pole should the stake be driven so that the wire will be taut?

Given A guy wire attached to a vertical pole of height 18 m is 24 m long and has a... View Article

What shape is a roadroller?

A road roller is cylindrical in shape. A cylinder is a three-dimensional shape consisting of two parallel circular bases, joined... View Article

What is the value of ln10?

The value of ln10 is 2.302585

The energy band gap is maximum in (a) Metals (b) Superconductors (c) Insulators (d) Semiconductors

The energy band gap is maximum in insulators. Therefore, the correct option is (c)

Sigmoid notch is present in (a) Radius (b) Ulna (c) Humerus (d) Femur

The Sigmoid notch is present in the Ulna. It is commonly called as a radial notch which is present on... View Article

Oxidative phosphorylation occurs in (a) Outer membrane of mitochondria (b) Inner membrane of mitochondria (c) Stroma of chloroplast (d) Grana of chloroplast

Inner membrane of mitochondria Oxidative phosphorylation is the final step in cellular respiration. It occurs in the mitochondria. The electron... View Article

A car drives along straight level frictionless road by an engine delivering constant power. Then velocity is directly proportional to? (a) t (b) 1/√t (c) √t (d) None of these

Power, P = F.v P = Constant P = mav P = m(dv/dt)v P dt = mvdv On integrating both... View Article

Which of the following has zero electron affinity: (a) Oxygen (b) Fluorine (c) Nitrogen (d) Neon

Neon Electron affinity is defined as the amount of energy released when an electron is added to a neutral atom... View Article

Name the process of designing and maintaining an environment in which individuals working in groups efficiently accomplish selected aims.

Management is the process of designing and maintaining an environment in which individuals, working together in groups, efficiently accomplish selected... View Article

Complete the series: cmw, hrb,?, rbl, wgq, blv (a) mwg (b) ivf (c) lwg (d) mxg (e) wmx

All the letters of each term are moved 5 steps ahead in alphabetic series to obtain the corresponding letters of... View Article

In the following equation, find the value of k for which the given value is a solution of the given equation, the value of k is kx^2 + √2x – 4 = 0, x = √2

Given kx2 + √2x – 4 = 0 On substituting x = √2, we get, k(√2)2 + √2.√2 – 4... View Article

A nucleus with mass number 220 initially at rest emits an alpha particle. If the Q value of the reaction is 5.5 MeV, the kinetic energy of the alpha particle is (a) 5.6 MeV (b) 4.4 MeV (c) 6.5 MeV (d) 5.4 MeV

Let M be the nucleus with mass number and X be the daughter nuclei produced. Hence, we have M →... View Article

A heavy car A of mass 2000 kg travelling at 10 m/s has a head-on collision with a sports car B of mass 500 kg. If both cars stop dead on colliding, what was the velocity of car B?

Given Mass of Car A, m1 = 2000 kg Speed of Car A, v1 = 10 m/s Mass of Car... View Article

One mole of an ideal monoatomic gas is mixed with 1 mole of an ideal diatomic gas. The molar specific heat of the mixture at constant volume is: (a) 3 cal (b) 4 cal (c) 8 cal (d) 9 cal

We know For monoatomic, Cv = (3/2)R For diatomic, Cv = (5/2)R Hence, For mixture Cv = [(3/2)R + (5/2)R]/2... View Article

A sample of CaCO3 has Ca = 40%, C = 12% and O=48%. If the law of constant proportions is true, then the weight of Calcium in 4 g of a sample of calcium carbonate from another source will be: (a) 0.016 g (b) 0.16 g (c) 1.6 g (d) 16 g

Given Ca = 40%, C = 12% and O = 48% The law of constant proportions holds true In 100... View Article

Encryption reduces data security. Choose the correct option from below list (a) False (b) True

The given statement is false. Hence, the correct option is (a)

Which of the following is non conservative force? (a) Force of friction (b) Magnetic force (c) Gravitational force (d) Electrostatic force

A non-conservative force is a force for which the work done depends on the path taken. Friction is an example... View Article

Why does nose start bleeding on high mountains? (a) Pressure inside body > atmospheric pressure (b) Pressure inside body < atmospheric pressure (c) Pressure inside body = atmospheric pressure (d) None of the above reason is correct

Pressure inside body > atmospheric pressure Nose starts bleeding on high mountains because the atmospheric pressure decreases and the blood... View Article

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