Kcet

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

Elution means 

(1) making the DNA bands visible under UV radiation 

(2) separation of DNA fragments on agarose gel 

(3) isolating alien DNA from the choice organism 

(4) cutting and extraction of DNA bands from the agarose gel 

Identify from the following group of animals, which exhibit oestrous cycle.

(1) Monkey, ape, man and elephant

(2) Lion, deer, dog and cow

(3) Lion, dog, monkey and ape

(4) Cow, monkey, elephant and ape

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

Reactions in Zeolite catalyst depend on, 

(1) Apertures 

(2) All of these 

(3) Pores 

(4) Size of cavity

A body falls freely for 10 sec. Its average velocity during this journey (take g = 10 ms^-2 ) 

(1) 10 ms^-1 

(2) 5 ms^-1 

(3) 100 ms^-1 

(4) 50 ms^-1

Which of the following is incorrect in a galvanic cell? 

(1) Reduction occurs at cathode 

(2) The electrode at which electrons are lost is called cathode 

(3) Oxidation occurs at anode 

(4) The electrode at which electrons are gained is called cathode

The correct statement regarding entropy is, 

(1) At absolute zero temperature, the entropy of a perfectly crystalline substance is +ve 

(2) At 0°C, the entropy of a perfect crystalline solid is zero 

(3) At absolute zero temperature, entropy of a perfectly crystalline solid is zero 

(4) At absolute zero temperature, the entropy of all crystalline substances is zero

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

Match the plant structures given in the column-I with their plants given in the column-TI.

(1) A – q, B – s, C – r, D – p 

(2) A – r, B – p, C – s, D – q 

(3) A – q, B – s, C – p, D – r 

(4) A – s, B – r, C – p, D – q