Atom is the smallest part of matter which takes part in chemical reactions.
True
False
Answer: Option A
Similar Questions :
1. The force which opposes the relative motion between different layers of liquid or gases is called
Critical Velocity
Streamline Flow
Terminal Velocity
Viscous Force
Answer: Option D
Explanation:
Critical Velocity - The maximum velocity upto which fluid motion is streamline is called Critical Velocity.
Streamline Flow - If velocity of all fluid particles is same all the time then it can be said in streamline flow.
Terminal Velocity - When a body falls in viscous medium, its velocity first increases and finally becomes constant. The constant velocity is called terminal velocity.
2. newton is used to measure
Speed
Volume
Force
Area
Answer: Option C
3. What is Hooke's Law ?
Stress is inversely proportional to strain.
Stress is directly proportional to strain.
Stress and strain are dependent on each other.
Stress and strain are independent of each other.
Answer: Option B
4. Which instrument is used to measure curvature of spherical objects ?
Spectroscope
Spherometer
Spectrometer
Sextant
Answer: Option B
Explanation:
Spectroscope - used to record spectra,
Spectrometer - used to measure the position of spectral lines,
Sextant - used to measure the height of very distant objects and also used by navigators to find the latitude. what you thought :)