NEET 2017 PITA

Instructions

For the following questions answer them individually

NEET 2017 PITA - Question 31


The energy liberated per nuclear fission is 200 MeV. If $$10^{20}$$ fissions occur per second the amount of power produced will be

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NEET 2017 PITA - Question 32


A ball of mass 1 kg is thrown vertically upwards and returns to the ground after 3 seconds. Another ball, thrown at $$60^\circ$$ with vertical also stays in air for the same time before it touches the ground. The ratio of the two heights are

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NEET 2017 PITA - Question 33


A body initially at rest, breaks up into two pieces of masses 2 M and 3 M respectively, together having a total kinetic energy E. The piece of mass 2 M, after breaking up, has a kinetic energy :

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NEET 2017 PITA - Question 34


A light beam is incident on a denser medium whose refractive index is 1.414 at an angle of incidence $$45^\circ$$. Find the ratio of width of refracted beam in a medium to the width of the incident beam in air.

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NEET 2017 PITA - Question 35


From the circuit of the following Logic gates, the basic logic gate obtained is :

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NEET 2017 PITA - Question 36


A body starts moving unidirectionally under the influence of a source of constant power. Which one of the graph correctly shows the variation of displacement(s) with time (t)?

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NEET 2017 PITA - Question 37


In an experiment of photoelectric effect the stopping potential was measured to be $$V_1$$ and $$V_2$$ with incident light of wavelength $$\lambda$$ and $$\lambda/2$$ respectively. The relation between $$V_1$$ and $$V_2$$ is

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NEET 2017 PITA - Question 38


A cell of emf E and internal resistance ‘r’ is connected to a variable external resistor ‘R’. The graph which gives the terminal voltage of cell ‘V’ with respect to R is

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NEET 2017 PITA - Question 39


A wall consists of alternating blocks of length ‘d’ and coefficient of thermal conductivity $$K_1$$ and $$K_2$$ respectively as shown in figure. The cross sectional area of the blocks are the same. The equivalent coefficient of thermal conductivity of the wall between left and right is:

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NEET 2017 PITA - Question 40


A common emitter amplifier circuit is shown in the figure below. For the transistor used in the circuit the current amplification factor, $$\beta_{dc} = 100$$ Other parameters are mentioned in the figure.

We find that :

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