Mock Practice Test

Physics

1. If force (F), velocity (V) and time (T) are taken fundamental units, the dimesions of mass are

a. FVT-1

b. FVT-2

c. FV-1T-1

d. FV-1T

2. A projectile is fired from the surface of the earth with a velocity of 5 m/s and angle A with the horizontal. Another projectile fired from another planet with a velocity of 3 m/s at the same angle follows a trajectory which is identical with the trajectory of the projectile fired from the earth. The value of the acceleration due to gravity on the planet is : (given gravity on earth= 9.8 m/s2

a. 3.5

b. 5.9

c. 16.3

d.110.8

3. A ballon with mass ‘m’ is descending down with acceleration ‘a’ (where a<g). How much mass should be removed from it so that it starts moving up with an acceleration ‘a’ ?

a. 2ma/g+a b. 2ma/g-a

c. ma/g+a d. ma/g-a

4. A body of mass (4m) is lying in x-y plane at rest. It suddenly explodes into three pieces. Two pieces, each of mass (m) move perpendicular to each other with equal speeds (v). The total kinetic energy generated due to explosion is -

a. mv2

b. 3/2 mv2

c. 2mv2

d. 4mv2

Chemistry

5. What is the maximum number of orbitals that can be identified with the following quantum number n=3, l=1, m=0

a. 1 b. 2 c. 3 d. 4

6. Calculate the energy in

corresponding to light of wavelength 45 nm : (Planck’s constant h= 6.63 x 10-34Js: speed of light c= 3x108m/s)

a. 6.67x1015

b. 6.67x1011

c. 4.42x10-15

d. 4.42x10-18

7. Equal masses of H2,O2 and methane have been taken in a container of volume V at temperature 27OC in identical conditions. The ratio of the volumes of gases H2:O2: Methane would be

a. 8:16:1 b. 16:8:1

c. 16:1:2 d. 8:1:2

8. Which property of colloids is not dependent on the charge on colloidal particles?

a. Coagulation b. Electrophoresis

c. Electro-osmosis d. Tyndall Effect

Biology

9. Which one of the following shows isogamy with non-flagellated gametes?

a. Sargassum b. Ectocarpus

c. Ulothrix d. Spirogyra

10. Archaebacteria differ from eubacteria in:

a. Cell membrane structure

b. Mode of nutrition

c. Cell shape

d. Mode of reproduction

11. Five kingdom system of classification suggested by R.H. Whittaker is not based on:

a. Presence or Absence of a well defined nucleus

b. Mode of reproduction

c. Mode of nutrition

d. Complexity of body organisation

12. Which one of the following fungi contains hallucinogens?

a. Morchella esculenta

b. Amanita muscaria

c. Neurospora sp.

d. Ustilago sp.

13. Which of the following is responsible for peat

formation?

a. Marchantia b. Riccia

c. Funaria d. Sphagnum

14. Placenta and pericarp are both edible portions in:

a. Apple b. Banana

c. Tomato d. Potato

Answers :

­1.d, 2.a, 3.a, 4.b, 5.a, 6.d, 7.c, 8.d, 9.d, 10.a, 11.a, 12.b, 13.d, 14.c