Advertisements
Advertisements
प्रश्न
A sharp pin works better than a blunt pin. Explain the reason.
Advertisements
उत्तर
A sharp tip is provided at the end of a pin so that pressure (FORCE / AREA) exerted by it is maximum when it is pressed by a given force.
APPEARS IN
संबंधित प्रश्न
It is easier to cut with a sharp knife than with a blunt one. Explain.
A normal force of 200 N acts on an area of 0.02 m2. Find the pressure in pascal.
If someone presses a pointed needle against your skin, you are hurt. But if someone presses a rod against your skin with the same force, you easily tolerate. Explain.
A beaker containing a liquid is kept inside a big closed jar. If the air inside the jar is continuously pumped out, the pressure in the liquid near the bottom of the liquid will
A brick is kept in three different ways on a table as shown in the following figure. The pressure exerted by the brick on the table will be
 |
 |
 |
| A | B | C |
Analogy
Broader straps: ______:: Thin needles: ______.
What is an Artisan aquifer?
The pressure in mines is ______ than the sea level.
The shape and size of the solids do not easily change.
A vessel filled with water is kept on a weighing pan and the scale adjusted to zero. A block of mass M and density ρ is suspended by a massless spring of spring constant k. This block is submerged inside into the water in the vessel. What is the reading of the scale?
