Three uniformly watered plants i, ii and iii were kept in 45% relative humidity, 45% relative humidity with blowing wind and 95% relative humidity, respectively. Arrange, these plants in the order (fastest to slowest) in which they will dry up.

(a) i → ii → iii

(b) ii → i → iii

(c) iii → ii → i

(d) iii → i → ii

Which one of the following is the correct description of a certain part of a normal human skeleton? 

(a) Parietal bone and the temporal bone of the skull are joined by fibrous joint 

(b) First vertebra is axis which articulates with the occipital condyles 

(c) The 9th and 10th pairs of ribs are called the floating ribs 

(d) Glenoid cavity is a depression to which the thigh bone articulates

Which one of the following is detrimental to soil fertility?

(a) Saprophytic bacteria

(b) Nitrosomonas

(c) Nitrobacter

(d) Pseudomonas

The number of positive integers n in the set {2, 3,…, 200} such that 1/n has a terminating decimal expansion is

(a) 16

(b) 18

(c) 40

(d) 100

Optical activity of DNA is due to its

(a) bases

(b) sugars

(c) phosphates

(d) hydrogen bonds

A bacterial colony is produced from

(A)  a single bacterium by its repetitive division

(B)  multiple bacterium without replication

(C)  clumping of two to three bacteria

(D)  a single bacterium without cell division 

A bird sitting on a single high tension wire does not get electrocuted because

(A)  the circuit is not complete.

(B)  the bird feet has an insulating covering.

(C)  capacitance of the bird is too small and the line frequency is too small.

(D)  resistance of the bird is too high  

A metallic wire is loaded at ends with two masses is placed over a slab of ice.

This wire passes through slab without splitting it into two pieces. This is due to

(a) depression of melting point

(b) elevation of melting point

(c) high conductivity of metal wire

(d) high specific heat of ice

A ball is launched from the top of Mt. Everest which is at elevation of 9000 m. The ball moves in circular orbit around earth. Acceleration due to gravity near the earth’s surface is g. The magnitude of the ball’s acceleration while in orbit is –

(A)  close to g/2

(B)  zero

(C)  much greater than g

(D)  nearly equal to g

The figure of a centimeter scale below shows a particular position of the vernier calipers. In this position the value of x shown in the figure is ( figure is not to scale) 

(A)   0.02 cm

(B)  3.65 cm

(C)  4.15 cm

(D)  0.03 cm