Sindh MDCAT 2022 Paper

121- Ammonia Solvay process is an industry for manufacture of;

A. HNO3
B. Na2CO3
C. H2SO4
D. CaCO3

Answer : B. Na2CO3

122- The quantum number allows following orbitals in M shell.

A. s-orbital
B. s.p.d&f-orbitals
C. s&p orbitals
D. s.p&d orbitals

Answer : D. s.p&d orbitals

123- What different resistors are connected across the terminals of battery:

A. both emf and PD becomes zero
B. both emf and terminal PD changes
C. both emf and terminal PD remains the same
D. the emf remains the but PD changes

Answer : D. the emf remains the but PD changes

124- The minimum energy of pair production is:

A. 1.02 V
B. 1.02eV
C. 1.02 MeV
D. 1.02 GeV

Answer : B. 1.02eV

125- The mathematical equation representing faradays law is :

A. E=-NAG/At
B. E=NAl/At
C. E=AG/At
D. E=(AG) At

Answer : A. E=-NAG/At

126- The cyclist moves on circular track skids because :

A. the limiting friction is perpendicular to centripetal force
B. the limiting friction is greater than required centripetal force
C. limiting friction is opposite to centripetal force
D. the limiting friction is less than the required centripetal force

Answer : D. the limiting friction is less than the required centripetal force

127- A body is dropped from certain height and falls freely its velocity after 5 seconds will be :

A. 94 m/s
B. 9.4 m/s
C. 4.9 m/s
D. 49 m/s

Answer : D. 49 m/s

128- Two transverse travelling waves are presented by these equations yt=A-sin(kx-ek) and y2=A-sin(kx-ax-w) these two waves differ in :

A. amplitude
B. wavelength
C. phase
D. direction of propagation

Answer : C. phase

129- In equation E=ΔV/Δr negative sign indicates that :

A. E points towards increasing V
B. E points decreasing V
C. E is perpendicular to V
D. E is opposite to ΔV

Answer : B. E points decreasing V

130- The path of a neutron moving perpendicular to a magnetic field is:

A. curve
B. straight line
C. ellipse
D. parabola

Answer : B. straight line

131- A battery of emf E has an internal resistance “r”. If current “I” is drawn, then the terminal potential Vt is given by:

A. Vt = E + Ir  
B. Vt = Er 
C. Vt = E/I – r
D. Vt = E/I + r  

Answer : A. Vt = E + Ir

132- The instantaneous emf generated by an alternating current generator is written as:

A. E = BINAsinωt
B. E = BNA sinωt
C. E = E0/BINA
D. E = BINA0  

Answer : B. E = BNA sinωt

133- A bullet is fired horizontally at 20 m/s in the absence of air friction. Its horizontal velocity after 2 seconds is:

A. 10 m/s
B. 20 m/s
C. 40 m/s
D. 80 m/s

Answer : B. 20 m/s

134- If the Rydberg constant for hydrogen is RH, then the wavelength of a line in the Lyman series is:

A. 4RH / 3
B. RH / 4  
C. 4 / RH  
D. 4 / 3RH

Answer : D. 4 / 3RH

135- The ratio of the molar specific heat of a gas at constant pressure to its molar specific heat at constant volume is:

A. equals to zero
B. greater than one
C. less than one  
D. equal to one

Answer : B. greater than one

136- If the mass and speed of a moving object are doubled, the kinetic energy (K.E) will be:

A. eight times
B. four times
C. doubled
D. sixteen times

Answer : A. eight times

137- The electric field intensity between two uniform, oppositely charged parallel plates is ?

A. ϵ°/2σ
B. σ/2ϵ°
C. 2σ/ϵ°
D. σ/ϵ°

Answer : D. σ/ϵ°

138- A box of mass M = 6 kg slides with speed V = 4 m/s across a frictionless floor. It suddenly explodes into two pieces. One piece with mass M1 = 2 kg moves in the same direction with speed v1 = 5 m/s. The velocity of the second piece is:

A. 1 m/s
B. 2 m/s
C. 4 m/s
D. 6 m/s

Answer : C. 4 m/s

139- The intensity level (sound level) of the faintest audible intensity is:

A. zero decibel
B. 140 decibel
C. 120 decibel  
D. 60 decibel  

Answer : A. zero decibel

140- If 2 µF capacitors are connected in series, their equivalent capacitance will be:

A. 8 µF
B. 0.75 µF 
C. 1.33 µF
D. 2 µF

Answer : C. 1.33 µF

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