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Quiz 8
Mdcat-past-papers - SZABMU Quiz
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Board: SZABMU |
141. The speed of sound in air is 332m/s at 0°C. What will be its value at 10°C?
332ms⁻¹
338.1ms⁻¹
332.61ms⁻¹
334.1ms⁻¹
142. Which of the following factors does not affect the speed of sound in air?
Density of gas
Moisture in air
Temperature
Pressure of gas
143. Which of the following factors does not affect the speed of sound in air?
Density of gas
Moisture in air
Temperature
Pressure of gas
144. Speed of sound is 332ms⁻¹ at 0°C. What will be its value at 10°C?
3320ms⁻¹
3381 ms⁻¹
332.2 ms⁻¹
332.1 ms⁻¹
145. In moist air (humidity), the speed of sound waves:
Increases
Decreases
Remain same
Zero
146. The temperature of air is increased 1°C then increase in speed of sound is:
6.1 ms⁻¹
1.6 ms⁻¹
0.61 ms⁻¹
0.16ms⁻¹
147. Effective distance for echo is:
10m
20m
15m
17m
148. The apparent frequency when the listener and source move towards each other is:
(v+b/v-a)f
(v-b/v-a)f
(v-a/v+b)f.M
(v-ab/v-b)f
149. The thermodynamic process during which volume of the system remains constant is called:
Isothermal
Isobaric
Isochoric
Adiabatic
150. The conditions for application of Boyle's law holds good in:
Adiabatic process
isothermal process
Isobaric process
Isochoric process
151. The internal energy of a system during an isothermal process:
Decreases
Increases
Becomes zero
Remain constant
152. The thermodynamic process during which the pressure is kept constant is called:
Isochoric process
Adiabatic process
Isobaric process
Isothermal process
153. The thermodynamic process during which the pressure is kept constant is called:
Isochoric process
Adiabatic process
Isobaric process
Isothermal process
154. First law of thermodynamics is manifestation of:
Law of conservation of charge
Law of conservation of mass
Law of conservation of momentum
Law of conservation of energy
155. Square of distance between two point charges. In Coulomb's law the value of constant "K" is:
9 × 10⁹
9 × 10⁹
9 × 10⁹
9 × 10⁹ N•m²/C²
156. The relative permittivity of iron is in:
Tens
Hundreds
Thousands
Zero
157. Electric intensity due to charge distributions are calculated using which of the following law?
Ohm's law
Faraday's law
Gauss's law
Ampere's law
158. A particle carrying a charge 2e falls through a potential difference of 3V, the energy acquired by it will be:
6eV
7eV
1.5eV
5eV
159. The SI unit of potential difference is:
Volt
Coulomb
Watt
eV
160. Electric potential is defined as:
Work per unit charge
Force per unit charge
Power per unit charge
Force
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