A plant is provided with ideal conditions for photosynthesis and supplied with isotope ¹⁴CO₂. When the products of the process are analysed carefully, what would be the nature of products? 

(1) Both glucose and oxygen are normal 

(2) Both glucose and oxygen are labelled 

(3) Only glucose is labelled and oxygen is normal 

(4) Only oxygen is labelled but glucose is normal

A plane glass plate is placed over a various coloured letters (violet, green, yellow, red). The letter which appears to raised more 

(1) Yellow 

(2) Violet 

(3) Red 

(4) Green

One of the following area is an example for secondary succession, if the succession takes place in/on 

(1) newly created pond 

(2) abandoned farm land 

(3) bare rock 

(4) newly cooled lava

The edible part of the fruit of apple is 

(1) Endocarp 

(2) Thalamus 

(3) Involucre 

(4) Pericarp

In the cyclotron, as radius of the circular path of the charged particle increases (ω = angular velocity, v = linear velocity) 

(1) ω only increases v remains constant 

(2) v increases, ω decreases 

(3) both ω and v increases 

(4) v increases, ω remains constant

Three projectiles A, B and C are projected at an angle of 30°, 45°, 60° respectively. If RA, RB and RC are ranges of A, B and C respectively, then (velocity of projection is same for A, B and C) 

(1) R_A = R_C > R_B 

(2) R_A = R_C < R_B 

(3) R_A = R_B = R_C 

(4) R_A < R_B < R_C

The component of a vector r along x-axis will have a maximum value if 

(1) vector r is along + ve y-axis 

(2) vector r  makes an angle of 45° with the x-axis 

(3) vector r is along +ve x-axis 

(4) vector r  is along –ve y-axis

Desired genes have been introduced into transgenic animals to obtain large scale production of useful biological products encoded by these genes. This approach is generally referred to as 

(1) gene therapy 

(2) hybridoma technology 

(3) down stream processing 

(4) molecular farming

The value of the sin 1° + sin 2° + … + sin 359° is equal to 

(1) 1 

(2) 180 

(3) 0 

(4) -1

The rms value of current in a 50 Hz AC circuit is 6 A. The average value of AC current over a cycle is

(1) 3/π√2

(2) 6/π√2

(3) 6√2

(4) Zero