It is known that a neutron exists in a light atomic nucleus

Which of the following also exists in the nucleus?

When two objects P and Q are supplied with the same quantity of heat, the temperature change in P is observed to be twice that of Q. The mass of P is half that of Q. The ratio of the specific heat capacity pf P to Q is

What is the speed of a body vibrating at 50 cyclic per second

Which of the following instruments helps to maintain the correct humidity and temperature of a building?

A cell of internal resistance 2 π supplies current to a 6 π resistor. The efficiency of the cell is

Which of the following representations is correct for an atom X with 28 electrons and 30 neutrons?

I. Refraction II. Interference III. Diffraction Which of the above properties are common to all waves?

A radio station broadcast at a frequency of 600KHZ. If the speed of light in air is 3 × 108ms⁻¹. Calculate the wavelength of the radio wave

Which of the following surfaces will absorbs radiant heat energy heat?

The instrument to measure the relative density of light is

Calculate the specific latent heat of vaporization of steam of 1.13 x 10⁶J pf heat energy is required to convert 15kg of it to water.

The instrument used to measure the pressure of a gas is

Determine the focal length of a thin converging lens if the power is 5.0 dioptres

Why do soldiers march disorderly while crossing a bridge?

If silicon is doped with phosphorus, what type of semiconductor material will be formed?

Three 3ω resistance are connected in parallel what is the equivalent resistance?


From the diagram above, calculate the total current in the circuit

Which of the following is a scalar quantity?

Calculate the electric field intensity between two plates of potential difference 6.5V when separated by a distance of 35cm.

Calculate the time taken for a mango fruit that fall from the tree 20 m to the ground [g = 10 ms^-2]

Which of the following operations can be used to convert an alternative current dynamo into a direct current dynamo

A block and tackle pulley arrangement has 6 pulleys in which an effort of 50N supports a load of 200N, calculate the efficiency of the machine

The net capacitance in the circuit above is

The action of blotting paper on ink is due to

Calculate the upthrust on an object of volume 50cm³ which is immersed in liquid of density 10³kgm^-3 [g = 10ms^-2]

A constant force of 5N acts for 5 seconds on a mass of 5kg initially at rest. Calculate the final momentum

Which of the following is not an electromagnetic radiation?

Which of the following is a semiconductor

I. Refraction II. Interference III. Diffraction
Which of the above properties are common to all waves?

Calculate the light of the image formed by a pinhole camera of length 12cm used to photograph an object 60cm away from the hole and 70cm high

An element and its isotope only differ in the number of

Calculate the angle of minimum deviation of a 60o prism of a refractive index [sin^-1(0.75) = 49°]

The volume of a fixed mass of gas is 10cm³ when its pressure is 400cmHg. Determine the volume of the gas when its pressure is 200cmHg.

From the diagram above, calculate the energy stored in the capacitor

When the r.m.s value of a source of electricity supply is given as 240v, it means that the peak value of the supply is

A man of mass 50kg ascends a flight of stains 5m high in 5 seconds. If acceleration due to gravity is 10ms⁻² the power expended is

Under which of the following conditions is work done?

Which is the incorrect formula for a body accelerating uniformly?

The thermal expansion of a solid is an advantage in

The S.I unit of moment of a force is