UI Physics 2019/2020 Past Questions

An a.c voltage is connected to an RLC series circuit of resistance 5 0, inductance 3mH and a capacitance of 0.05 F. Calculate the resonance frequency.

An electric heater converts 1KJ of electrical energy to heat energy every 2 second with 100% efficiency. The power produced is

Complete the following statement: The electromotive force is

If a charged body is moving in a circle on a horizontal plane, what is the general direction of the resulting magnetic field?

If a resistor is halved in magnitude and the potential across it is tripled, then the ratio of the old current to the new current is

The angle of incidence in a denser medium when the angle of refraction in the less dense medium is 90 is called a

The driving mirror is a

The following are types of a converging lens except

When the Sun, the earth and the moon are in line during their movement, with the earth being the opaque object and casting its shadow on the moon, we have

Which of the following instruments could be used in finding angle of elevation of the sun?

A volatile liquid used for cooling purpose in refrigerator is

Complete the following statement: A temperature decrease of 30 C° is equal to a temperature decrease of

Complete the following statement: Bimetallic strips used as adjustable switches in electric appliances consist of metal strips that must have different

Heat can be transferred from one end of a metal rod in contact with heat to the other end which is in contact with heat through

Heat supplied or removed from a system which causes a change of state without a change in temperature is

A stone which is dropped into a dry well hits the bottom in 2.2s. How deep is the well? (Take g = 10m/s)

A woman whose mass is 70 kg sits 2.4 m from the fulcrum of a seesaw. At what distance from the fulcrum should a 60 kg man sit to balance the seesaw?

An air bubble trapped at a depth in a liquid rises to the surface. Which of the following is true about its mass and density as it rises?

Complete the following sentence: The operation of a hydraulic jack is an application of

Complete the following statement: Today. the standard meter is defined in terms of

Determine the gravitational acceleration on the surface of the moon if its mass is 1/32 of the mass of the earth and its radius is 1/4 that of the earth(take $m_{e}$ and $r_{e}$ as the mass and radius of the earth respectively)

A uniform horizontal 300-N beam, 5.0m long is suspended vertical from its two ends by a rope. If a 600-N person stands 1.50m from its left end, Find the tension in each of the rope

A car of mass 1.40 × $10^{3}$kg being towed has a net force of 4.5 × $10^{3}$kg applied to it. The car starts from rest and travels down a horizontal highway. Find the work done by the fore after it has travelled 100.0m(ignore kinetic energy loss caused by friction and air resistance)

The hockey puck is given an initial speed of 30.0m/s on a frozen pond. The puck remains on the ice and slide 200m before coming to rest. Determine the coefficient of kinetic fricton between puck and ice

A machine overcomes a resistance of 3000N when an effort of 150N is applied to it.Find the mechanical advantage of the system