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प्रश्न
Answer the following in short.
What is parallax error?
उत्तर
The error that can arise due to the wrong positioning of the eye while reading a scale is called parallax error.
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संबंधित प्रश्न
Fill in the blank
Distance travelled d = ________ × time t
A piece of paper of dimensions 1.5 m × 20 cm has area ______.
Select the correct alternative
The correct relation for speed is
How does the density of water changes when it is heated from 4°C to 10°C ?
A car travels with a speed 12 m s”1, while a scooter travels with a speed 36 km h-1. Which of the two travels faster ?
Answer the following in short.
Describe any two means by which the actual capacity’ of a measuring container can be made less than the correct value by a dishonest trader.
Answer the following in detail.
Which is the most suitable unit for measuring the volume of a cylinder of a car engine?
What are derived quantities?
What is the fundamental quantity? Give examples.
The density of a material in SI unit is 128 kg m-3. In certain units in which the unit of length is 25 cm and the unit of mass is 50 g, the numerical value of density of the material is _____.
