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Term Biology Was Introduced By (A) Darwin.(B) Linnaeus. (C) Aristotle. (D) Lamarck and Treviranus.

The correct answer is (D) Lamarck and Treviranus. Biology is the branch of science which deals with the study of living organisms. The term... View Article

Not For Profit Concerns Do Not Have A Profit Motive (True / False)

The given statement is true. The Not-for-Profit is an Organisations that work with its main motive to provide service. These organizations... View Article

Write Down A Unit Vector In XY-Plane, Making An Angle Of 30degree With The Positive Direction Of X-Axis.

Sol: If vec{r} is a unit vector in the XY-plane, then Here, θ is the angle made by the unit vector with the positive direction of the... View Article

A Sample Of Radioactive Material Has Mass ‘m’, Decay Constant Λ And Molecular Mass ‘m’. If Na is Avogadro’s Number, What Will Be The Initial Activity Of The Sample?

Sol: We know that the activity of any radioactive material is λN, where: N is the number of undecayed nuclei at time t λ is decay constant... View Article

A Ladder Rests Against Frictionless Vertical Wall, With Its Upper End 6 M Above The Ground And The Lower End 4 M Away From The Wall. The Weight Of The Ladder Is 500 N And Its Centre Of Gravity At (1/3) Rd Distance From The Lower End. What Will Be The Wall’s Reaction?

Sol: N1 = Normal force from the wall to the ladder. N2 = Normal force from the ground to the ladder. Let friction force due to the ground f... View Article

The Indian National Army (INA) Came Into Existence In 1943 In______.(A) Japan.(B) Burma.(C) Malaya.(D) Singapore.

The correct answer is (D) Singapore. On 4 July 1943, Rash Bihari Bose assumed the leadership of the IIL and the INA in a ceremony at the Cathay... View Article

Gases always tend to be less soluble in liquids as the temperature is raised. (True / False.)

The given statement is true. Gases always tend to be less soluble in liquids as the temperature is raised. Solubility of gases in liquids... View Article

UPSC Prelims 2021 Question Paper Analysis

The UPSC 2021 Prelims exam was conducted on 10 October 2021. In this article, you can get a detailed explanation of the questions that were... View Article

Slug is a unit of (A) weight (B) mass (C) length (D) area

mass Slug is the unit of mass. It is a mass which accelerates by 1 ft/s2 when a one pound force is applied So, the correct option is (B)... View Article

SF6 is which type of gas? (A) Electro positive (B) Electro negative (C) Both (A) and (B) (D) None of these

SF6 is both electro positive and electro negative gas. Therefore, the correct option is (C)... View Article

What is an abstract noun for friendly?

The abstract noun for friendly is friendliness... View Article

What do you mean by classification?

The systematic arrangement of things on the basis of certain similarities or differences is known as classification... View Article

A ray of light enters into benzene from air. If the refractive index of benzene is 1.50. By what percent does the speed of light reduce on entering the benzene?

Given Refractive index of the benzene (μ) = 1.50 Initially, the light was travelling in the air After travelling in air, the light enters... View Article

Fill in the blank with the most suitable adverb: Are you feeling ________ better today? (A) very (B) too (C) any (D) more

Any In the given sentence, the speaker wishes to ask whether there is even a slight improvement in the listener's health. Here, in the given... View Article

Which of the following is used as an anti knocking material? (A) T.E.L (B) C2H5OH (C) Glyoxal (D) Freon

T.E.L and C2H5OH Tetraethyl lead (T.E.L) also called an organic lead. It is used as an anti-knock agent in gasoline and jet fuels. Tetraethyl... View Article

Define the term: Boiling point

The boiling point of a liquid is the temperature at which the vapour pressure of the liquid becomes equal to the atmospheric pressure of the... View Article

Write any six important functions of auxins

Auxin means to grow. They are widely used in agricultural and horticultural practices. They are found in growing apices of roots and stems and... View Article

The population of a town increases by 10% annually. If the present population is 60000, what will be its population after 2 years?

Given Present population of a town = 60000 Annually population increases by 10% Hence, Increase in the population in first year = 10% of 60000... View Article

During the adiabatic expansion of 2 moles of a gas, the internal energy of the gas is found to decrease by 2 joules, the work done during the process on the gas will be equal to (A) 1 J (B) -1 J (C) 2 J (D) -2 J

Given ΔU = -2J For adiabatic process ΔQ = 0 According to first law of thermodynamics ΔQ = ΔU + ΔW ΔW =... View Article

The hormone that increases the rate of heartbeat and blood pressure after shock in a person is: (A) Throxin (B) Adrenalin (C) Pancreatin (D) Gastrin

Adrenaline This hormone is secreted by the adrenal glands in the centre of medulla. The main function of adrenaline is to produce contraction of... View Article

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