SINDH MDCAT 2015 PAPER

1. Identify the instruments which is / are used for the measurement of resistance:

I. Wheatstone Bridge

II. Meter Bridge

III. Post office Box

IV. Ohmmeter

2. In a certain circuit, a transistor has a collector current of 10 mA and a base current of 40 μA. What is the current gain of the transistor?

Note: This question was cancelled 

3. A particle of mass 5 mg moves with speed of 8 m/s. Calculate its de Broglie wavelength (h = 6.63×10^-34 Js)

4. X-rays are also known as:

5. When we measure the nuclear masses and compare them with the masses of the constituent nucleus in free states. The mass of the nucleus is always less than the mass of the constituent nucleons. This difference in mass is known as:

6. _____ are very high energy electromagnetic radiations of extremely short wavelength emitted from the nuclei of radioactive atoms originating from the high energy transitions of the nucleons in the nuclei.

7. Kelvin, is the unit of thermodynamic temperature, which is _____ of the thermodynamic temperature of the triple point of water.

8. Two forces of magnitude 10 N and 20 N act on a body in directions making angles 30 degrees and 60 degrees respectively with x-axis. What is the resultant force?

9. A 100 kg golf ball is moving to the right with a velocity of 20 m/s. It makes a head on collision with an 8 kg steel ball, initially at rest. Compute velocities of the balls after collision?

Note: This question was cancelled

10. Two bodies ‘X’ and ‘Y’ are attached to the ends of a string which passes over a pulley so that the two bodies hang vertically. If the mass of the body ‘X’ is 5 kg and that of body ‘Y’ is 4.8 kg. Find the acceleration? (g = 9.8m/s2)