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Home » Medical Papers » Aptitude Test - 29
Hassan
1.ood being cooked in microwave oven is an example of
A. Beats
B. Overtones
C. Resonance
D. Beats
2.A 10 cm long solenoid has 100 turns. What will be the magnetic field inside it along its axis if one micro ampere current is passed through it?
A. 4Ï€ x 10-13 tesla
B. 4Ï€ x 10-7 tesla
C. 4Ï€ x 10-10 tesla
D. 4Ï€ x 10-13 tesla
3.A gas containing ‘N’ number of molecules of a gas having mass of each molecule ‘m’ is in a cubic container having length of each side ‘a’. What is the density of gas contained in cube?
A. N/a2
B. m/a3
C. Nm/a3
D. N/a2
4.The kinetic energy K.E. with which the electron strikes the target is given by:
A. K.E. = e2V
B. K.E. = hc/λ
C. K.E. = hf2
D. K.E. = e2V
5.In ‘General Gas Equation PV=nRT’, ‘n’ represents the number of moles of gas. Which of the following represents the relation of ‘n’?
A. n = NNA
B. n = N/NA
C. n = NA/N
D. n = NNA
6.LASER is an acronym for:
A. Light amplification by stimulated emission of radiation
B. Light annihilation by stimulated emission of radiation
C. Light amplitude of stimulated emission of radiation
D. Light amplification by stimulated emission of radiation
7.At triple point of water, the pressure of gas is 2680 Pa, by changing ‘T’ the pressure increases to 4870 Pa. Then ‘T’ is:
A. 496.38
B. 438.96 K
C. Zero
D. 496.38
8.X-rays can be produced by bombardment of ____________ on target metal:
A. Protons
B. Electrons
C. Neutrons
D. Protons
9.Laser light is monochromatic which means
A. It consists of one ray of light
B. It consists of one wavelength
C. It consists of carbon monoxide gas
D. It consists of one ray of light
10.If an electron in the ‘K’ shell is removed and an electron from ‘L’ shell jumps to occupy the hole in the ‘K’ shell, it emits a photon of energy:
A. hfKα = EL – EK
B. hc = EL – EK
C. h/λKα = EL – EK
D. hfKα = EL – EK
11.Which of the following property must be there in a substance so that it can be used as target in X-ray tube?
A. It must have low melting point
B. It must have low atomic number
C. It must have high reflecting ability
D. It must have low melting point
12.Which of the following can be used to produce population inversion for the emission of Laser?
A. Optical pumping
B. Optical fibre
C. Optical instrument
D. Optical pumping
13.What is the charge on alpha particles emitted during the phenomenon of radioactivity?
A. +e
B. –e
C. –2e
D. +e
14.A radioactive nuclide decays by emitting an alpha particle, a beta particle and a gamma ray photon, the change in the nucleon number will be:
A. -4
B. -1
C. -2
D. -4
15.A half-life of sodium-24 is _______ which is used to estimate the volume of blood in a patient:
A. 6 hours
B. 15 hours
C. 8 hours
D. 6 hours
16.Which of the following is unit of absorbed dose?
A. Sievert
B. Gray
C. Roentgen
D. Sievert
17.The isotope of Iodine-131 is used in the treatment of
A. Blood cancer
B. Bone cancer
C. Lung tumor
D. Blood cancer
18.Which of the following effect is observed due to emission of β― during the phenomenon of radioactivity?
A. A increases by 1 and Z remains same
B. Z increases by 1 and A remains same
C. Z decreases by 1 and A remains same
D. A increases by 1 and Z remains same
19.Electric charge on an object is measured as 5 micro coulombs. How the value of this charge can be expressed in terms of base units:
A. 5 x 100 ampere second
B. 5 x 10-6 ampere second
C. 5 x 10+6 coulomb second
D. 5 x 100 ampere second
20.If ‘m’ is the mass, ‘c’ is the velocity of light and x = mc2, then dimensions of ‘x’ will be:
A. [LT-1]
B. [ML2T-2]
C. [MLT-1]
D. [LT-1]
21.An object of mass ‘m’ is suspended in an elevator moving downward with acceleration equal to acceleration due to gravity. What is the apparent weight of object?
A. Zero
B. 2mg
C. mg
D. Zero
22.Stokes’ Law for steady motion in a fluid of infinite extent is given by
A. F = 6πηrv
B. F = (4/3)πr3ρg
C. F = 6πηr2ρ
D. F = 6πηrv
23.If speed of efflux through a small hole in a large tank is 9.8 m/s. Find the height at the fluid above the hole
A. 1 m
B. 9.8 m
C. 4.9 m
D. 1 m
24.Polarization of light exhibited the nature of light as
A. Longitudinal wave
B. Compressional wave
C. Transverse wave
D. Longitudinal wave
25.The concentration of a sugar solution can be determined by
A. Un-polarized light
B. Plane polarized light
C. Interference of light
D. Un-polarized light
26.The information from one place to another can be transmitted very safely and easily by:
A. Copper wire
B. Aluminium wire
C. Photodiode
D. Copper wire
27.The image of an object placed inside the focal length of a convex lens will be largest and clearest when it is at the
A. Less than 25 cm
B. Near point
C. Greater than 25 cm
D. Less than 25 cm
28.A simple harmonic oscillator has a time period of 10 seconds. Which equation rotates its acceleration ‘a’ and displacement ‘x’?
A. a = -2 x
B. a = -(20Ï€)x
C. a = -( 2Ï€/ 10 ) 2 x
D. a = -2 x
29.When the length of a simple pendulum is doubled, find the ratio of the new frequency to the old frequency?
A. 1/4
B. 1/2
C. √2
D. 1/4
30.The ratio of tensile strength to tensile strain is called
A. Modulus of elasticity
B. Bulk Modulus
C. Young’s Modulus
D. Modulus of elasticity
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