Question
Write a short note on term 'groove'.
✓
Answer
Grooves mean cuts, grooves are made on a surface so that to increase the friction of the surface by increasing irregularity, for example on a blackboard when we increase the rub the chalk due to friction the chalk gets printed on blackboard, if we increase the cuts the chalk will get more deposited than previous time.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Paheli setup an experiment using liquid A in the beaker as shown in figure. She observed that the bulb glows. Then, she replaced the liquid A by another liquid B. This time the bulb did not glow. Boojho suggested replacing the bulb by an LED. They observed that the LED glows. Explain.
What are the consequences of deforestation?
Name two non$-$contact forces.
→Explain how the use of CNG in automobiles has reduced pollution in cities ?
Why does the milk that comes in packets not spoil? What is pasteurisation ?
Name the device which is used to protect a tall building from lightning.
What is ultrasound? State two uses of ultrasound.
Name the process in which a coating of one metal can be deposited on the surface of another metal by using current from a battery.
Can we use our natural resources forever ?
How many reflected rays can there be for a given single incident ray falling on a plane mirror?