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Practice Questions Cytology

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PROPHASE 1 OF MEIOSIS 1

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Archimedes Principle

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A man fires a bullet against wall and hears an echo after 2 s. He walks 80 m towards the wall and f

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Two children are at the opposite end of an iron pipe. One strucks the end of the pipe with a stone.

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A man stands in between two cliffs X and y, such that he is at a distance of 66 m from x. When he bl

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A road runs parallel to a vertical cliff at a distance of 680 m as shown in the figure. A truck, sta

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A ship sends a high frequency sound wave and receives an echo after 1 second. What is the depth of t

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A person clapped his hands near a cliff and heard the echo after 5 s. What is the distance of the cl

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Suppose that you hear a clap of thunder 16.2 s after seeing the associated lightning stroke. The spe

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A hiker shouts towards a vertical cliff 465 m away. The echo is heard 2.75 s later. What is the spee

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A bomb explodes on the moon. How long will it take for the sound to reach the earth?

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The frequency of a source is 20 kHz. The frequency of sound waves produced by it in water and air wi

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An observer standing at the sea-coast observes 54 waves reaching the coast per minute. If the wavele

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The sound wave produced in a gas is always

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Sonar

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Echo

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Multiple Reflection of Sound

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Laws of Reflection of Sound

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Statement I : Astronauts cannot talk directly to each other on oon.Statement II : Moon has no atm

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How do dolphins and whales communicate?

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Which of the following animals produce sound below our hearing range?

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Which of the following animals are capable of hearing ultrasound?

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Frequency range of audible sound for humans is 20 Hz and 20000 Hz. Find the corresponding range of t