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# SSC Scientific Assistant Physics Previous Year Questions 81 to 100

Hi students, Welcome to Amans Maths Blogs (AMBIPi). Are you preparing for SSC Scientific Assistant and looking for SSC Scientific Assistant Physics Previous Year Questions 81 to 100 AMBIPi? In this article, you will get previous year questions of SSC Scientific Assistant IMD (Indian Meteorological Department), which helps you in the preparation of government job of SSC IMD Scientific assistant.

## SSC Scientific Assistant IMD Previous Year Questions

SSC Scientific Assistant Physics Previous Year Question No: 81

Which of the following is the product of moment of inertia and angular velocity?

Option A : Angular momentum

Option B : Power

Option C : Torque

Option D : Work

Option A : Angular Moment

SSC Scientific Assistant Physics Previous Year No: 82

The radium of the orbit of electron in an hydrogen atom is equal to ? (ε0 is permittivity of free space , ‘e’ is charge and ‘m’ is mass of an electron )

Option A : e/(4πε0mv2)

Option B : mv2e2(4πε0)

Option C : mv2e/(4πε0)

Option D : e2/(4πε0mv2)

Option D : e2/(4πε0mv2)

SSC Scientific Assistant Physics Previous Year Question No: 83

The refractive indexer of the denser medium 2 with respect to rarer medium 1 will be ______ (where ‘C’ is the measure of the critical angle)

Option A : n12 = 1/sinC

Option B : n21 = 1/sinC

Option C : n12 = sinC

Option D : n12 = 1/(-sinC)

Option a : n12 = 1/sinC

SSC Scientific Assistant IMD Physics Previous Year No: 84

The speed ‘c’ of electromagnetic wave in vacuum is equal to ? ( where μ0 and ε0 are free space permeability and permittivity constants )

Option A : 1√μ0ε0)

Option B : 1/√μ0ε0)

Option C : μ0ε0

Option D : (μ0ε0)2

Option B : 1/√μ0ε0

SSC Scientific Assistant Physics Previous Year Paper No: 85

Which of the following is a periodic function if ‘ω’ is a constant and ‘t’ represents time ?

Option A : log(ωt)

Option B : e = ωt

Option C : 2π√(1/ωt)

Option D : sin ωt + cos 2 ωt + sin 4 ωt

Option D : sin ωt + cos 2 ωt + sin 4 ωt

SSC Scientific Assistant Physics Previous Year Question No: 86

The speed ‘v’ of transverse waves on a stretched string of a linear mass density ” and tension ‘T’ is equal to

Option A : √(ú/T)

Option B : √(T/ú)

Option C : (T/ù)2

Option D : (ù/T)2

Option B : √(T/ú)

SSC Scientific Assistant  Paper Physics Previous Year No: 87

The statement, “the liquid pressure is same at all points at the same horizontal level irrespective of cross sectional area or base area or the shape of the container” represents which of the following?

Option AAnomalous behavior of water

Option B : The hydrostatic paradox

Option D : Archimedes’ principal

Option B : The hydrostatic paradox

Scientific Assistant  Physics Previous Year Question Paper No: 88

Electric flux through a closed surface , ‘S’ enclosing a charge ‘q’ is equal to ______. (ε0 is permittivity of free space)

Option A : qε0

Option B : q2ε0

Option C : ε0/q

Option D : q/ε0

Option D : q/ε0

IMD Scientific Assistant Question Physics Previous Year Paper No: 89

There is a fundamental limit on the efficiency of a heat engine set by an independent principal of nature called ______ the Law of Thermodynamics.

Option A : Zeroth

Option B : First

Option C : Third

Option D : Second

Option D : Second

SSC Scientific Assistant Physics Previous Year : 90

Three quantities are needed to specify the magnetic field of the earth on its surface. Which of the following is not needed?

Option A : the vertical component

Option B : the horizontal component

Option C : the magnetic declination

Option D : the magnetic dip

Option A : the vertical component

SSC IMD Scientific Assistant  Physics Previous Year Question No: 91

Water at 4oC  has maximum ______.

Option A : volume

Option B : viscosity

Option C : compressibility

Option D : density

Option D : density

SSC IMD Scientific Assistant Physics Previous Year Question No: 92

What is the magnifying power of a compound microscope whose eyepiece has a focal length of 10 cm and the magnifying power of the objective is ? (Use least distance of distinct vision as 25 cm )

Option A : 3.5

Option B : 14

Option C : 8

Option D : 16

Option B : 14

SSC Scientific Assistant IMD Physics Previous Year Question No: 93

What is the Moment of Inertia of a thin circular ring of mass ‘M’ and radium ‘R” about its diameter ?

Option A : MR2/4

Option B : MR2/3

Option C : MR2/2

Option D : MR2/6

Option C : MR2/2

SSC Scientific Assistant IMD Physics Previous Year No: 94

What would be the acceleration (in m/s2) due to gravity on planet whose mass in 1/7th the mass of earth and radius , half the radium of earth ?

Option A : 5.6

Option B : 4.9

Option C : 4.2

Option D : 3.5

Option A : 5.6

SSC IMD Scientific Assistant Physics Previous Year Paper No: 95

What would be the frequency (in Hz) of the beats when two sounds of frequencies 256 Hz and 260 Hz superimpose ?

Option A : 8

Option B : 2

Option C : 16

Option D : 4

Option D : 4

SSC IMD Scientific Assistant Previous Year Paper Physics Previous Year No: 96

When temperature is held constant , the pressure and volume of a quantity of a gas are related as PV = constant. This relationship is known as ?

Option A : Charles law

Option B : Boyle’s law

Option C : Combined Gas law

Option D : Gay Lusssac’s law

Option B : Boyle’s law

SSC IMD Scientific Assistant Previous Year Paper Physics Previous Year Question No: 97

When the transistor is used in cut-off or saturation state , it acts as ?

Option A : An Amplifier

Option B : Zener Diode

Option C : A switch

Option D : An AND Gate

Option C : A switch

IMD Scientific Assistant Physics Previous Year Question Paper  No: 98

Which of the following is false about Electrostatic field lines ?

Option A : Field lines start from positive charges and end at negative charges

Option B : If there is a single positive charge field lines will end at infinity.

Option C : Two field lines can never cross each other

Option D : Electrostatic field lines form closed loops.

Option D : Electrostatic field lines form closed loop

IMD Scientific Assistant Physics Previous Year Paper No: 99

Which of the following statements is consistent with the Doppler effect ?

Option A : As the source of a sound move towards the listener the pitch of the sound appears to be higher.

Option B : As the source of sound moves towards the listener the pitch of the sound appears to be lower .

Option C : As the source of sound moves away from the listener the pitch of the sound appear to be higher.

Option D : As the listener moves towards the source of sound the pitch of the sound appears to be lower.

Option A : As the source sound moves towards the listener the pitch of the sound appears to be higher

Previous Year Physics SSC IMD Scientific Assistant: 100

Zener diode is fabricated by ______ of the junction.

Option A : lightly doping both p and n-sides

Option B : heavily doping both p and n-sides

Option C : heavily doping p-side and lightly doping n-side

Option D : lightly doping p-side and heavily doping n-side