Solved Past Papers MCQs of MDCAT 1
Solved Past Papers MCQs of MDCAT for the preparation of Medical and Dental College Admission Test and other medical tests.
PHYSICS
Q.1 When a helium atom loses an electron, it becomes:
A) An alpha particle. C) A positive helium ion.
B) Proton. D) A negative helium ion.
Q.2 Beta ray emitted by a radioactive substance is:
A) An electron which was existing outside the nucleus.
B) An electron which was existing inside the nucleus.
C) An electron emitted by the nucleus as a result of the decay of neutron inside the nucleus.
D) A pulse of electromagnetic wave.
Q.3 An electric charge in uniform motion produces:
A) An electric field. C) Both magnetic and electric fields.
B) A magnetic field. D) Neither magnetic nor electric fields.
Q.4 What is emitted by a hot metal filament in a cathode ray tube?
A) X-ray. C) Electron.
B) Proton. D) Photon.
Q.5 If the mass of the bob of a pendulum is doubled its time period is:
A) Halved. C) Unchanged.
B) Doubled. D) Increases four times.
Q.6 The centre of Newton rings is dark due to:
A) Polarization. C) Constructive interference.
B) Destructive interference. D) Reflection.
Q.7 Which one is most stable element on the basis of binding energy?
A) Sn. C) Kr.
B) Ba. D) Fe.
Q.8 Resistance in RC circuit of time constant 2 seconds is 1000 Ohms. What is value of C in the circuit?
A) 2 μ farad. C) 200 μ farad.
B) 20 μ farad. D) 2000 μ farad
Q.9 The Lenz’s law refers to induced __________
A) emf. C) Shear.
B) Resistance. D) Currents.
Q.10 In which of the following, output is similar to NAND gate if input A=0 and input B=1.
A) NOR. C) XOR.
B) XNOR. D) Both B and C.
Q.11 For atomic hydrogen spectrum, which of the following series lies in visible region of electromagnetic spectrum?
A) Lyman series. C) Balmer series.
B) Paschen series. D) Bohr series.
Q.12 __________ are the particles that experience strong nuclear force.
A) Electrons. C) Neutrinos.
B) Muons. D) Neutrons.
Q.13 The vertical velocity of ball thrown upward __________ with time.
A) Decreases linearly. C) Doubles.
B) Remains constant. D) Decreases parabolically.
Q.14 The force required to bend the normally straight path of a particle into a circular path is called __________ force.
A) Traveling. C) Centrifugal.
B) Bending. D) Centripetal.
Q.15 A disc at rest without slipping, rolls down a hill of height (3 x 9.8) m. What is its speed in m/sec when it reaches at the bottom?
A) 11.4. C) 22.8.
B) 19.6. D) 9.8.
Q.16 Tuning of the radio is the best example of electrical __________
A) Resonance. C) Current.
B) Resistance. D) None of these.
Q.17 A standing wave pattern is formed when the length of string is an integral multiple of
__________ wavelength.
A) Triple. C) Half.
B) Full. D) Double.
Q.18 Which of the following lights travels the fastest in optical fibres?
A) Visible light. C) Ultra-violet.
B) Invisible infra-red. D) Ordinary light.
Q.19 The algebraic sum of potential changes in a closed circuit is zero is Kirchhoff’s __________ rule.
A) First. C) Third.
B) Second. D) None of these.
Q.20 In LED when an electron combines with a __________ during forward bias conduction, a photon of visible light is emitted.
A) High voltage. C) Hole.
B) Photon. D) Positron.
Q.21 For photons of energy greater than 1.02 MeV the probability of pair production occurrence __________ as the energy increases.
A) Increase. C) Reduces to half.
B) Completely diminishes. D) Remains unchanged.
Q.22 The neutron is assumed to be made of
A) One up quark and two down quarks. C) Two up quarks and one down quark.
B) Two up quarks and two down quarks. D) One up quark and one down quark.
Q.23 An __________ missile is called a ballistic missile.
A) Un-powered and guided. C) Powered and guided.
B) Un-guided and powered. D) Un-powered and un-guided.
Q.24 Two cylinders of equal mass are made from same material. The one with the larger diameter accelerates __________ the other under the action of same torque.
A) Faster than. C) Equal to.
B) Slower than. D) None of these.
Q.25 The angular frequency of simple pendulum is directly proportional to __________
A) l. C) v l.
B) 1/l. D) v1/l.
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