SINDH MDCAT 2016 PAPER

1. If vector A is perpendicular to vector B i.e. θ – 90º, or one of the two vectors is a null vector then A. B = ?

2. An orange is dropped from the top of a tower. If it takes 10 seconds to hit the ground, find the height of the tower? (g=9.8 m/s^2)

3. A vehicle travelling at a constant speed of 60 km/h rounds a curve of radius 100 m, find its acceleration?

4. An 80 kg man runs up a hill through a height of 4 m in 3 seconds. How much work does he do against gravitational forces? (g=9.8m/s^2)

5. A body with a mass of 0.2 g attached to a spring and placed on a horizontal frictionless table. The string is stretched 30 cm. when a force of 6 N is applied. What is its spring constant?

6. Identify the technical and scientific applications of polarization of light in our daily life:

I. The determination of the concentration of optically active substance such a sugar.

II. In photography, to enhance the effect of sky and clouds.

III. It is used in photography under water.

7. What will be the magnification of the lens, when an object is placed at a distance of 60 cm from a concave lens of focal length 30 cm ?

8. What Is the volume occupied by a gram-mole of a gas at 0 C pressure of one atmosphere? ( R=8.314 J/mol.K )

9. An object is lifted 5 m above leveled ground, mass of object is 20 kg and acceleration due to gravity is 10 N kg, potential energy of the object is:

10. Two capacitors C1 (6uf) and C2 (12uF) are in series connected across a 180 volts d.c. supply. Calculate the charges on C1 and C2 respectively.