Pressure exerted by a sharp needle on a surface is

Pressure exerted by a sharp needle on a surface is

A) More than the pressure exerted by a blunt needle.

B) Less than the pressure exerted by a blunt needle.

C) Equal to the pressure exerted by a blunt needle.

D) None of these.

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

A) More than the pressure exerted by a blunt needle.

6 views Answered 2023-02-05 15:29

Related Questions

The total surface area of solid cylinder is `231 cm^(2)` and its curved surface area is `(2)/(3)` of the total surface area. Find the volume of the cy

2 Answers 5 Views

A force of 16N distributed uniformly on one surface of cube side 8cm. Find the pressure on the surface.

2 Answers 5 Views

When pressure is exerted on lungs, the following one occurs.

2 Answers 4 Views

The arcs which operate when you put your leg on sharp thing ………….

2 Answers 5 Views

Make a stack of carrom coins on the carrom board. Give a sharp hit at the bottom of the stack with the striker.

2 Answers 5 Views

Equimolar mixture of two gases \( A_{2} \) and \( B_{2} \) is taken in a rigid vessel at temperature \( 300 K \). The gases reacts according to given equations : \[ \begin{array}{ll} A_{2}(g) \rightleftharpoons 2 A(g) & K_{P_{1}}=? \\ B_{2}(g) \rightleftharpoons & K_{P_{2}}=? \\ A_{2}(g)+B_{2}(g) & \rightleftharpoons 2 A B(g) & K_{P_{3}}=2 \end{array} \] If the initial pressure in the container was 2 atm and final pressure developed at equilibrium is \( 2.75 atm \). in which equilibrium partial pressure of gas \( A B \) was \( 0.5 atm \), calculate the ratio of \( \frac{ K _{ p _{2}}}{ K _{ p _{1}}} \). [Given : Degree of dissociation of \( B_{2} \) is greateı than \( A _{2} \) ].

2 Answers 7 Views

a – Incisors have sharp edge, canines have sharp and pointed edges, b – Molars and premolars are blunt and flat.

2 Answers 5 Views

A student obtained a blurred image of an object on a screen by using a concave mirror. In order to obtain a sharp image on the screen,

2 Answers 5 Views

A sharp knife can cut food much more easily because A) It produces greater pressure on the food.

2 Answers 5 Views

Needles has a sharp tip, because A) Effective pressure is more due to smaller area of contact

2 Answers 7 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)