Lecturer Physics Test 6 Online Preparation MCQs Past Papers

Which term is used for human eye defect “near sightedness”?

The SI derived unit of dose equivalent is:

Which principle states that the path taken by a ray of light between any two points in a system is always the path that takes the least time (or the shortest optical path)?

The time required for a charged particle to make a complete revolution in a magnetic field does not depends upon:

Which mirror be used for obtaining a  parallel beam of light from a small lamp?

Which of the following are optical telescopes?

A certain wire has resistance “R” the resistance of another wire, identical with the first except for having twice its diameter is:

Which instrument measures the magnification of a telescope?

Natural units are physical units of measurement based only on universal physical constants. Which of the following is a natural unit?

The smallest sub-division of a compound that exhibit its characteristics properties is called:

One electronvolt (ev) is a unit of energy equal to approximately:

(a) 1.602 × 10−9 J
(b) 1.602 × 10−19 J
(c) 1.602 × 10−29 J
(d) 1.609 × 10−39 J

The time required to charge a capacitor depends upon:

The physics underlying the operation of a refrigerator most closely resemble the physics underlying:

The dimension of gravitational constant G are:
(a) M−1 L−1 T−1
(b) M−1 L−2 T−2

c) M−1 L−3 T−2
(d) M−1 L−2 T−3

What is defined as the ratio of image height to the object height?

Which of the following are defects in lenses?

The energy of the molecular motion appears in the form of:

Which law gives the angles for coherent and incoherent scattering form a crystal lattice?

The SI unit of power is:

The law that governs the force between electric charges bears the name of:

The electron volt is a unit of:

The separation between the plates of parallel plate capacitor whose original capacitance is now:

The dimensions of Coulomb constant (k) are:
(a) Q−1 M−2 L−2 T−2
(b) Q−2 M L3 T−1
(c) Q−1 ML2 T−2
(d) Q−2 ML−3 T−2

A current is following north along a power line. The direction of the magnetic field above it, neglecting the earth’s field is:

When diamagnetic substance is inserted in a current carrying coil, the magnetic field: