# MCAT Practice Test

**Q. 44.** If the distance between two bodies each 1 Kg is 1 meter, then the force of attraction between these two bodies is:

- 9 x 10
^{9}N - 3 x 10
^{-11}N - 6.67 x 10
^{-11}N - 8.8 x 10
^{-12}N

**Q. 45.** White light does not converge on a single point after passing through convex because of:

- Chromatic aberration
- Spherical aberration
- Distortion
- Both spherical and chromatic aberration

**Q. 46.** A pendulum of length L has a period T. If the period is doubled, the length of the pendulum is:

- Doubled
- Halved
- Quadrupled
- Increased by

**Q. 47.** if volume of a given mass of a gas is doubled without changing its temperature, the density of the gas:

- Is doubled
- Remains unchanged
- Is halved
- Is reduced to 1/4 of the original value

**Q. 48.** How much average force should be applied to 2500 Kg car, having velocity of 30 m/s, in order to stop the in 15 seconds?

- 1000 N
- 6000 N
- 5000 N
- 8000 N

**Q. 49.** Graphite is used in the nuclear reactors for specific purpose that is it:

- Absorb neutrons
- Slow down neutrons
- Absorb alpha particles
- Slow down high speed electron

**Q. 50.** If velocity of 11 x 10^{3} m/s is needed to escape a rocket from gravitational pull, how much velocity will be needed to escape a cricket-ball?

- 11 x 10
^{6}m/s - 11 x 10
^{5}m/s - 11 x 10
^{4}m/s - 11 x 10
^{3}m/s

**Q. 51.** A body is projected with high velocity at 45^{o} (*angle*) with ground, which falls after 15 seconds, its horizontal component of velocity during its motion will:

- Increase
- Decrease
- Remain constant
- First decrease then increase

**Q. 52.** Neutrons penetrate matter easily because they:

- Occupy no more than one-tenth of the volume of the electrons
- Are electrically neutral
- Occupy no more than one-tenths of the volume of the protons
- Have smaller mass than protons

**Q. 53.** The frequency of second’s pendulum is:

- 2 Hertz
- 0.5 Herts
- 1 Hertz
- 0.25 Herts

**Q. 54.** If tension in the string remains constant but the diameter of the sitting is doubled, what will be the effect on speed of transverse waves in the string?

- Remains constant
- Becomes double
- Become half
- Decreases four times

**Q. 55.** Pressure, exerted on a surface with some force, is

- Directly proportion to the surface area
- Inversely proportion to the surface area
- Directly proportion to the force
- None of them

**Q. 56.** The equation for Ampere law is:

- µ
_{o}I = Bπr - µ
_{o}I = Bπr^{2} - µ
_{o}I = B2πr - µ
_{o}I = Bπ^{2}r^{2}

**Q. 57.** A rate of change of angular momentum of a body is equivalent to:

- Impulsive force
- The applied torque
- Applied force
- Moment of inertia

**Q. 58.** Which of the following is equivalent to one Pascal of gas pressure?

- 1 Kg.m
^{2}/s^{2} - 1 Kg.m
^{3}/s^{2} - 1 Kg/m.s
^{2} - 1 Kg.m/s

**Q. 59.** When a radio station is broadcasting a musical program, the antenna of its transmitter:

- Radiates AF electromagnetic waves
- Radiates longitudinal waves
- Radiates RF electromagnetic waves
- Radiates AF longitudinal waves

**Q. 60.** A copper rod has a resistance of 40Ω at 00C and a resistance of 56Ω at 1000C. What is the temperature co-efficient of resistance of copper?

- 2 x 10
^{-4}K^{-1} - 4 x 10
^{-3}K^{-1} - 4 x 10
^{-4}K^{-1} - 8 x 10
^{-4}K^{-1}

## CHEMISTRY

**Q. 61. **As we move away from nucleus, the distance between the shells:

- Remains same
- Increases
- Decreases
- Sometimes increase and sometime decreases

**Q. 62. **Which metal have least tendency to form a positive ion?

- Aluminum
- Calcium
- Iron
- Sodium

**Q. 63. **Detergents are:

- Natural products
- Synthetic products
- Both A and B
- None of above

**Q. 64. **Which gas is formed when ammonium chloride is heated with aqueous sodium hydroxide?

- Ammonia
- Chlorine
- Hydrogen
- Nitrogen

**Q. 65. **The atomic size of an atom is:

- Greater than the positive ion
- Smaller than the positive ion
- Greater than the negative ion
- Equal to covalent radius

**Q. 66. **If iron-sheet is dipped in a solution of zinc chloride and heated, then a layer of zinc is formed that protect iron from rusting. This process is called:

- Anodizing
- Chrome Plating
- Galvanizing
- Tin Plating