Town Officer Paper of 26-05-2023 (SPSC)
Which of the following vitamin we can get from sun rays?
A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin D
Which of the following is NOT a feature of solids?
A. Definite mass and volume
B. Frequent fluidity
C. Rigidity
D. Definite shape
The enthalpy change of a reaction does NOT depend on:
A. Initial and final enthalpy change of reaction
B. State of reactants and products
C. Different intermediate reactions
D. Nature of reactants and products
Center of mass is point in body which shows only:
A. Rotational motion
B. Zigzag motion
C. Translation motion
D. Both A and B
When we heat magnetic material then its magnetism:
A. Decreases
B. Increases
C. Remains same
D. Infinity
The process in which AC is converted into DC is called:
A. Amplification
B. Rectification
C. Modulation
D. Oscillation
If electron in hydrogen atom jumps from lower to higher orbit then which quantity will decrease?
A. Potential energy
B. Total energy
C. Kinetic energy
D. Radius
If a gas at constant temperature and pressure expands, then its:
A. Entropy increases and then decreases
B. Internal energy decreases
C. Internal energy increases
D. Internal energy remains constant
The atomic radius decreases in a period due to:
A. Decrease in nuclear attraction
B. Increase in nuclear attraction
C. Decrease in number of electrons
D. None of the above