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4th June 2018, 01:24 PM
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| Re: TIFR Previous Year Question Papers Biology
As you want here I am giving below TIFR Biology Previous Year Question Papers on your demand : 1. Which of the following contribute to climate change? a. The ozone hole b. Lead additives in petrol c . Natural-gas-based power d. All of the above 2. At night, if a torch is pointed at a cats eyes they reflect light back to the source. Why does this phenomenon occur? a. To scare away predators b. To attract mates c . To increase sensitivity to low light d. It is just a side-effect of photoreceptor function 3. A person throws a ball across a field. When the ball is at the highest point of its trajectory, the direction of its velocity and acceleration are a. parallel to each other b. anti-parallel to each other c. inclined to each other at an angle of 45 d . 90 to each other 4. If the radius and height of a cone are both increased by 100%, then its volume is increased by a. 400% b . 300% c. 200% d. 100% 5. If the average of X, 2X+5, X+6 and 45 is 29, whats X? a . 15 b. 20 c. 24 d. 32 6. The Doppler effect causes a change in the perceived frequency of a moving source of sound. Suppose an ambulance is moving with constant speed down a road, and a listener is standing next to the road on a footpath. Why does the frequency of the ambulance siren appear to change most abruptly when it passes closest to the listener? a . Because this is where the greatest change of relative velocity occurs b. Because the Doppler effect acts most strongly at short distances c. Because human hearing is more sensitive to the frequency of louder soun ds d. All of the abov TIFR Biology Previous Year Question Papers     |