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A gardener pushes a lawn roller through a distance 20 m. If he applies a force of 20 kg-wt in a direction inclined at 60⁰ to the ground, the work done by him is (A) 1960 J (B) 196 J (C) 1.96 J (D) 196 kJ

Given F = 20 kg - wt F = 20 x 9.8 N θ = 600 and s = 20 m Work done = Fs cos θ Work done = 20 x 9.8 x 20 x cos 600 On further... View Article

The maximum efficiency of full wave rectifier is: (A) 100% (B) 25.20% (C) 42.2% (D) 81.2%

The rectifier efficiency determines how efficiently the rectifier converts Alternating Current (AC) into Direct Current (DC). Rectifier... View Article

Which one of the following is not a lateral meristem? (a) Intercalary meristem (b) Intrafascicular cambium (c) Interfascicular cambium (d) Phellogen

Intercalary meristem Intercalary meristem 1. It is located in the leaves and internodes at the intercalary position. 2. These help to increase... View Article

Who was the Governor General of India at the time of the uprising of 1857? (A) Lord Dalhousie (B) Charles Canning (C) Lord Curzon (D) Lord Dufferin

Charles Canning was the Governor General of India at the time of the uprising of 1857 Charles Canning, 1st Earl Canning was born on 14 December... View Article

The lungs are protected by two membranes called __________ (A) Pleural membrane (B) Meninges (C) Mucous membrane (D) None of the above

Pleural membrane Pleura membrane surrounds the lungs and protects it from friction. Hence, the correct option is (A)... View Article

Define the unit of self inductance

Induction is the magnetic field which is proportional to the rate of change of the magnetic field. This definition of induction holds for a... View Article

What is the full form of CII? (A) Compilation of Indian Investment (B) Confederation of Indian Industry (C) Confederation of Inspection in Industry (D) None of these

The full form of CII is Confederation of Indian Industry. CII is a non-profit and non-governmental organization created by advisory and... View Article

The chairperson of GST council is __________ (a) President of India (b) Prime Minister (c) Finance Minister (d) RBI Governor (e) Finance Secretary

Finance Minister is the chairperson of the GST council. Hence, the correct option is (c)... View Article

Extensive planting of trees to increase forest cover is called as (A) Afforestation (B) Agroforestry (C) Deforestation (D) Social forestry

Afforestation Afforestation is the planting of trees in a previously barren environment whereas deforestation is the destruction of trees and... View Article

Indian books and manuscripts were written on perishable materials such as __________. (A) Cloth (B) Palm leaves (C) The bark of Birch trees (D) All of these

Indian books and manuscripts were written on perishable materials such as palm leaves, tree bark and cloth which have little chance of surviving... View Article

Who were the major partron of Kathak?

The Mughals were the major patrons of Kathak. Kathak began evolving into a distinct mode of dance in the fifteenth and sixteenth centuries with... View Article

If (2, 0) is a solution of linear equation 2x + 3y= k then the value of k is (A) 4 (B) 5 (C) 2 (D) 1

If (2, 0) is a solution of linear equation (2x + 3y) then the value of x = 2 and y = 0 Substituting the value of x and y in the given equation,... View Article

Explain the concept of IVF

The full form IVF is In Vitro Fertilization. IVF is carried out under restrictive lab conditions by fusing ova from the woman donor and sperm... View Article

Taxon is (A) Species (B) Unit of classification (C) Highest rank in classification (D) None of these

Unit of classification Taxon (Taxa: plural) is a unit in the science of taxonomy or biological classification. Taxa is the hierarchical... View Article

Mention the S.I unit for molar conductivity

The S.I unit of molar conductivity is S⋅m2⋅mol-1.... View Article

Microeconomics deals with the study of aggregates. True or False.

False, microeconomics deals with prices and production in the market whereas the study of aggregates is the matter of macroeconomics.... View Article

Additive inverse of 10 is:

Additive inverse of 10 is -10.... View Article

A thin circular ring of the area A is held perpendicular to a uniform magnetic field of induction B. A small cut is made in the ring and a galvanometer is connected across the ends such that the total resistance of the circuit is R. When the ring suddenly squeezed to zero areas, the charge flowing through the galvanometer is: A) BR/A B) (AB)/R C) ABR D) E2A/R2 E) None

Answer: B) (AB)/R As we know, Q = It Now, I = induced EMF/R EMF = (-0-BA)/t I = BA/Rt Q = (BA/Rt) x t Q = BA/R... View Article

Two trains travelling on the same track are approaching each other with equal speed of 40ms^−1 . The drivers of the trains begin to decelerate simultaneously when just 2.0km apart. Assuming the decelerations to be uniform and equal, the value to the deceleration to barely avoid collision should be A. 11.8ms^−2 B. 11.0ms^−2 C. 2.1ms^−2 D. 0.8ms^−2

Answer: D. 0.8ms−2 Given, initial speed, u = 40 m/s Distance to be covered by each train, s = 1km = 1000 m We have to determine the... View Article

Name the enzyme present in tears which prevents eye infections.

Lysozyme is the enzyme present in tears which prevents eye infections.... View Article

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