921. A projectile has a maximum range of 200m. What is the maximum height attained by it?
(A) 25m
B) 50m
(C) 75m
(D) 100m
922. Which of the following remains constant during the motion of a projectile fired from a planet?
(A) Vertical component of velocity
(B) Momentum
(C) Kinetic energy
D) Horizontal component of velocity
923. Macroscopic Coordinates do not involve special assumptions about:
A. Only (i) is true
B. Only (ii) is true
C. Only (iii) is true
D. All are true
924. If Two systems “A” and “B” are in thermal equilibrium with a system ” C”, Then _ are not in equilibrium:
A. A and C
B. C and B
C. B and C
D. None
925. The following is an intensive coordinate of a thermodynamics system in equilibrium state:
A. Volume
B. Pressure
C. Charge
D. Total Polarization
926. The type of work that cannot be described in macroscopic thermodynamics:
A. Hydrostatic work
B. External work
C. Internal Work
D. Adiabatic Work
927. In thermodynamics, work done by the system is taken as:
A. Positive
B. Negative
C. Zero
D. None
928. Waves Transmit from one place to another:
A. Mass
B. Amplitude
C. Wavelength
D. Energy
929. When a sound wave goes from air into water, the quantity that remains unchanged is its:
A. Speed
B. Amplitude
C. Frequency
D. Wavelength
930. Two blocks of lead, one twice as heavy as the other, are both at 50 degrees Celsius. The ratio of the heat content of the heavier block to that of the lighter block is:
A. 1/2
B. 1
C. 2
D. 4
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