1. Origin is the point of intersecting of ______ coordinate axes:
(A) One
(B) Two
(C) Three
(D) Four
2. According to the equation of continuity, when water falls its speed _______, while its cross-sectional area decreases:
(A) Increases
(B) Decreases
(C) Remains same
(D) Different
3. During the measurement of quantities, how many errors occur?
(A) 5 types
(B) 4 types
(C) 3 types
(D) 2 types
4. Mass energy of an electron at rest is:
(A) 1.02 MeV
(B) 0.511 KeV
(C) 0.511 MeV
(D) 2.02 MeV
5. A unit vector has _______ only:
(A) Magnitude
(B) Distance
(C) Displacement
(D) None of the above
6. If layers of fluid have no frictional force between them, then it is known as:
(A) Viscous
(B) Non-viscous
(C) Incompressible
(D) Both A and B
7. Which quantities are used to describe laws of physics?
(A) Atomic quantities
(B) Nuclear quantities
(C) Mechanical quantities
(D) Physical quantities
8. In a cathode ray oscilloscope, spots are formed on the screen having:
(A) Anode
(B) Cathode
(C) Grid
(D) Matrix
9. If the value of the moment arm is zero, then the torque produced will be:
(A) 1
(B) 0
(C) Doubled
(D) Decreased
10. The Venturi relation is one of the applications of:
(A) Equation of continuity
(B) Bernoulli’s equation
(C) Light equation
(D) Speed equation
11. Units given by the system international for measuring physical quantities are called:
(A) SI units
(B) IS units
(C) S units
(D) I units
12. The magnetic field outside a solenoid is:
(A) Zero
(B) Strong
(C) Infinite
(D) Negligible