MDCAT Physics MCQ Test With Answer for Physics Chapter wise

In the phenomenon of hysteresis, the magnetism and magnetizing current behaves as

• I lags A
• 1 leads B B
• I & B becomes equal C
• None of these D

In a never system, the repeaters are placed at about

• 50 km A
• 75 km B
• 100 km C
• 125 km D

The ability of anybody to return, to its original shape is called

• Elasticity A
• Elastic force B
• Stress C
• Strain D

To get higher magnification we must use

• Simple microscope A
• A convex lens B
• A compound microscope C
• All of these D

For obtaining appreciable extension,the wire should be:

• Short and thin A
• Long and thin B
• Short and tick C
• Long and thick D

The length of second's pendulum at a place where g=980 cm/sec²is:

• 77 cm A
• 88.1 cm B
• 99.2 cm C
• 100.3 cm D

When the source of light is at very large distance, the shape of wavefront is:

• Spherical A
• Cylindrical B
• Plane C
• None of these D

The coulomb’s law is valid for the charges which are:

• Moving and point charges A
• Stationary and point charges B
• Moving and non-point charges C
• Stationary and large size charges D

Young's modulus for concrete is

• 10 A
• 15 B
• 25 C
• 30 D

Huygen principle is used to determine:

• Speed of light A
• Location of wavefront B
• About polarized and unpolarized light C
• None of them D

The ‘emf ’ is always even when no current is drawn through the battery of the cell:

• Zero A
• Present B
• Absent C
• Maximum D

For a body moving with constant speed in a horizontal circle, which of the following remains constant?

• Velocity A
• Centripetal force B
• Acceleration C
• Kinetic energy D

Bulk modulus for water is

• 2.2 A
• 4.5 B
• 6.2 C
• 7.3 D

The energy dissipated per cycle for iron in hysteresis loop is

• less than for steel A
• equal to the steel B
• more than the steel C
• any one of them D

The time taken by light for its passage from M to m and back is

• 2c/d A
• d/2c B
• 2d/c C
• d²/2c D

The minimum number of lenses used in compound microscope is

• 1 A
• 2 B
• 3 C
• 4 D

The process of doping causes resistivity of semiconductor to

• Increase A
• Decrease B
• Same C
• Become zero D

Shear modulus for bone is

• 15 A
• 40 B
• 50 C
• 80 D

Refractive index of material depends upon

• Nature of material A
• Wave length B
• Temperature C
• All of these D

A point source in a homogeneous medium gives rise to:

• A plane wavefront A
• A spherical wavefront B
• A cylindrical wavefront C
• An elliptical wavefront D

The minimum distance between a source and the screen for which a real image is possible with a convex lens is

• Its focal length A
• Twice the focal length B
• Four times the focal length C
• Square of the focal length D

The image formed by an eyepiece of compound microscope is

• Real and diminished A
• Real and enlarged B
• Virtual and enlarged C
• Virtual and diminished D

Mole is a unit of measuring:

• amount substance A
• Intensity of light B
• Amount of current C
• Mass D

The magnification of a compound microscope of object and eye piece of focal lengths f₀and f_e, respectively is

• 
  A
• 
  B
• 
  C
• 
  D

In multimode graded index fibre core and cladding has boundary

• Noticeable  A
• No noticeable B
• No boundary C
• None of these D

The least distance of distinct vision for a normal eye is

• 15 cm A
• 25 cm B
• 35 cm
  C
• 1 m D

The magnetism produced by electrons within an atom from motion/motions of electron.

• One motion A
• Two motions B
• Three motions C
• None of these D

3 joules of work is done in 3 seconds, then power is:

• 6 watt A
• 3 watt B
• 18 watt C
• 1 watt D

If d = 0.25 cm   Y = 0.059 cm   L = 100 cm    m = 2 then λ is equal to

• 567 nm A
• 569 nm B
• 590 nm C
• 596 nm D

Polaristion is a phenomenon associated with a certain type of wave.

Which condition must be fulfilled if the wave is to be polarised?

• It must be a light wave A
• It must be a longitudinal wave B
• It must be a light wave C
• It must be a transverse wave D

The direction of force experienced by a moving in a magnetic field will be:

• Parallel to the field A
• Opposite to the field B
• Parallel to its direction of motion C
• Perpendicular to both the field and the velocity vector D

A force 𝑭 = (𝟓𝒊̂+ 𝟑𝖩̂) newton is applied over a particle which displaces it from its origin to the point 𝒓 = (𝟐𝒊̂− 𝟏𝖩̂) meters. The work done on the particle is:

• – 7 joules A
• +13 joules B
• + 7 joules C
• +11 joules D

Density is defined as:

• Mass per volume A
• Volume per mass B
• Mass x volume C
• Mass per length D

The cores of electromagnets used for alternating currents where the specimen repeatedly undergoes magnetization and demagnetization should have

• broad hysteresis curves A
• narrow hysteresis curves B
• any one of the them C
• none of them D

Significant figures in 1.0 x10^-3 are:

• Two A
• Three B
• Four C
• Five D

Newton's rings are formed due to:

• Manetisation A
• Diffractin B
• Interference C
• Polarization D

When the deformation produced in the material becomes permanent, this type of behaviour is called

• proportionality A
• elasticity B
• plasticity C
• none of them D

A body moving in a circular path with a constant speed has a

• Constant velocity A
• Constant kinetic energy B
• Constant acceleration C
• Constant displacement
  D

• 
  A
• 
  B
• 
  C
• 
  D

The saturation of the material reached when magnetic flux density changes from

• Zero to minimum value A
• Zero to maximum value B
• Maximum to zero value C
• Minimum to negative value D