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Ozone in troposphere prevents us from? (a) Cause photochemical smog (b) Protects from UV radiation (c) Protects from X-ray (d) Protects from greenhouse effect

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by JeeNeetQnA in Physics and Measurement asked Jul 26 11 views

If W = work done, T = Temperature, KB = Boltzmann constant, x = Displacement & W = αβ^2 e x^2/αKBT

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by JeeNeetQnA in Oscillations and Waves asked Jul 26 8 views

A travelling wave is given by y = −0.21sin(x+ 3t) where x is in m, t is in seconds, y is in mm.

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by JeeNeetQnA in Oscillations and Waves asked Jul 26 10 views

If the force acting on the body moving in circular motion is proportional to r−3, then the time period

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by JeeNeetQnA in Properties of Solids and Liquids asked Jul 26 10 views

Some drops, each of radius ‘r’ coalesce to form a large drop of radius ‘R’. The surface tension is T.

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by JeeNeetQnA in Electromagnetic Induction and Alternating Currents asked Jul 26 13 views

An AC current is given by i(t) = I1 sin wt + I2 cos wt. Find the rms value of current.

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by JeeNeetQnA in Rotational Motion asked Jul 26 8 views

Four solid spheres each of mass m and radius a, have their centers on the vertices of a square whose side is b.

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by JeeNeetQnA in Physics and Measurement asked Jul 26 20 views

Find the significant figure in 50000.020 × 10^-3

Find the significant figure in 50000.020 × 10-3 (a) 5 (b) 6 (c) 7 (d) 8

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by JeeNeetQnA in Mathematics asked Jul 20 15 views

The system 2x + 3y + 2z = 1, 4x + 6y + 2z = 1, – x + y + 2z = 3 has

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by JeeNeetQnA in Complex Numbers and Quadratic Equations asked Jul 20 14 views

If z^2 + αz + β = 0 has one root 1 − 2i, where α, β ∈ R. Find the value of α − β

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by JeeNeetQnA in Chemistry asked Jul 20 18 views

Indium is refined by which of the following methods?

Indium is refined by which of the following methods? (1) Van-Arkel (2) Zone-refining (3) Distillation (4) Liquation

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by JeeNeetQnA in Chemistry asked Jul 20 11 views

Which of the following cannot form CO on reaction with H2O?

Which of the following cannot form CO on reaction with H2O? (1) CH4 (2) C3H8 (3) CO2 (4) C

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by JeeNeetQnA in Chemistry asked Jul 20 14 views

Statement - 1: Ni2+ is detected by dimethylglyoxime and NH4OH Statement - 2: Dimethylglyoxime is a neutral

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by JeeNeetQnA in Chemistry asked Jul 20 22 views

Statement - 1: α-sulphur and β-sulphur are reversibly converted to each other under slow heating

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by JeeNeetQnA in Chemistry asked Jul 20 12 views

In which of the following more than one type of bond length is present

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by JeeNeetQnA in Chemistry asked Jul 20 19 views

Correct order of bond dissociation energy of following halogens is

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by JeeNeetQnA in Chemistry asked Jul 20 12 views

What is composition of German silver?

What is composition of German silver? (1) Cu Zn Ni (2) Ag Ni Cu (3) Zn Ni Ag (4) Ag Au Zn

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