The unit of capacitance is

• A. farad
• B. coulomb
• C. henry
• D. ohms

Which of the following curved surfaces will produce a real image? I. Concave mirror II. Convex mirror III. Diverging lens IV. Converging lens

• A. I and III only
• B. I, II and IV only
• C. II, III and V only
• D. II and IV only

Which of the following colours of surfaces will radiate heat energy best?

• A. Red
• B. White
• C. Black
• D. Yellow

A moving coil galvanometer has a full-scale deflection of 3A equivalent to 30o deflection. The sensitivity of the instrument is

• A. 33.0
• B. 0.1
• C. 90.0
• D. 10.0

A projectile is released with a speed u at an angle \(\theta\) to the horizontal. With the aid of a diagram, show that the time of flight is equal to \(\frac{2uSin\theta}{g}\), where g is the acceleration of free fall.

The electrolyte used in the Nickel-Iron (NiFe) accumulator is

• A. dilute tetraoxosulphate(VI) acid
• B. barium chloride solution
• C. potassium hydroxide solution
• D. sodium hydroxide solution

A thermometer with an arbitrary scale S, of equal division registers -30^oS at the ice point and +90^oS at the steam point. Calculate the Celsius temperature corresponding to 60^oS

• A. 25.0^oC
• B. 50.0^oC
• C. 66.7^oC
• D. 75.0^oC

The linear expansivity of brass is 2 x 10^−5 C^−1. If the volume of a piece of brass is 15.00cm at 0°C, what is the volume at 100°C

• A. 16.03cm³
• B. 15.09cm³
• C. 16.00cm³
• D. 15.03cm³

The most suitable type of mirror used for the construction of the search light is the?

• A. concave mirror
• B. convex mirror
• C. spherical mirror
• D. parabolic mirror

A plank is placed along the path on which a wheel barrow containing sand is pushed at a construction site to prevent it from sticking as illustrated in the diagram given. The large area of the plank prevents the wheel barrow from getting stuck by

• A. increasing the reaction on the ground
• B. increasing the pressure on the ground
• C. decreasing the pressure on the ground
• D. decreasing the weight on the ground