Only for Physics Geniuses Quiz

Only for Physics Geniuses Quiz

Question Number 1

What is the weight of an object at the centre of the earth?

A. zero

B. mass*gravity

C. mass*acceleration

D. E=mc^2

E. E=mc^4

F. None of the above

Question Number 2

What is the formula for finding the maximum speed with a specific coefficient of friction

A. coefficient of friction*normal=mv^2/r

B. inward reaction/normal

C. sin i/sin r= constant

D. 2 pie(r+h)/sqrt(GM(mass of the earth)/Radius of the earth+h)

E. E=MC^6

F. none of the above

Question Number 3

Question Number 4

When an object is at rest then coefficient of friction=

A. mass*gravity

B. mass*acceleration

C. Dipole Movement

D. lim x

E. dx/dt

F. F=coefficient of viscoity*A*dv/dx

Question Number 5

This is a mathematical expression for the net loss of heat from by radiation by a perfectly black body

A. emissitivity*stefan-boltzzman constant*a*T^3

B. emissitivity*stefan-boltzzman constant*a*T^4

C. emissitivity*stefan-boltzzman constant*a*T^4)-emissitivity*stefan boltzzman constant*A*T^4 ) where first formula is for heat gained from radiation and second is heat lost

D. emissitivity*stefan-boltzzman constant*a*T^3)-emissitivity*stefan boltzzman constant*A*T^3 ) where first formula is for heat gained from radiation and second is heat lost

E. summation of log x

F. None of these

Question Number 6

Thermal Conductivity of an object is inversely proportional to

A. Temperature gradient

B. Area of the pipe

C. Temperature of the object

D. Perpendicular distance

E. Thermal Constant

F. None of these

Question Number 7

A generator works on the principle of

A. electromagnetic induction

B. electromagnetic dipole movement

C. electron affinity

D. Flurosis Principle

E. Einstein mass energy equivalence

F. Newton' law of electricity generator

Question Number 8

What is the value of constant of wiens displacement law

A. 2.9*10^-4

B. 2.9*10^-3

C. 2.9*10^-10

D. 2.9*10^-6

E. 2.9*10^10

F. 2.9*10^12

Question Number 9

If the maximum wavelength of a body equals 5 then what is the absolute temperature?

A. 2.9*10^-4/5

B. 2.9*10^-3/5

C. 2.9*10^-6/4

D. 2.9*10^-12/8

E. 2.9*10^-7/58

F. .9*10^-7/6

Question Number 10

Work done in stretching a spring to a distance of 10 metres=10 joules. Then spring constant equals

A. 0.2

B. 0.63

C. 0.4

D. 0.8

E. 0.9

F. 1/2kx^2

Question Number 11

Two forces 3 newtons and 4 newtons are acting on an object and with an angle of 60 degree between them on an object of mass 10kg. What is the resultant acceleration?

A. sqrt(37)/10

B. 3.7 ms^-1

C. 2.5 ms^-1

D. 7/10

E. 3/10

F. none of these

Question Number 12

Stokes Law is related to which branch of physics

A. Quantum mechanice

B. Mechanics

C. Electrical Engineering

D. Aerodyanmics

E. Fluid Dynamics

F. None of these