Physics JAMB

The stylus of a phonograph record exerts a force of 7.7 x 10−²N on a groove of radius 10^-5m. Compute the pressure exerted by the stylus on the groove

A. 2.45 x 108 Nm-2
B. 3.45 x 108 Nm-2
C. 4.90 x 108 Nm-2
D. 2.42 x 108 Nm-2

Correct Answer:

Option A = 2.45 x 108 Nm-2

Explanation

Pressure P = F/A
F/πr2

= 7.7 x 10-2
π x (10-5)2
= 7.7 x 10-2
π x 10-10

= 2.45 x 108 Nm-2

Sunday

Share
Published by
Sunday
Tags: physics

Recent Posts

List of Universities Offering Veterinary Medicine in Nigeria

Veterinary medicine is the branch of medicine that deals with the prevention, diagnosis, and treatment…

4 months ago

List of Universities Offering Anthropology in Nigeria

Anthropology is the scientific study of human beings and their cultures. It encompasses a wide…

4 months ago

List of Universities Offering Sociology in Nigeria

Sociology is the scientific study of human society, culture, and behavior. It examines the social…

4 months ago

List of Universities Offering Social Work in Nigeria

Social Work is a profession dedicated to helping individuals, families, and communities to cope with…

4 months ago

List of Universities Offering Religious Studies in Nigeria

Religious studies is an academic discipline that explores the beliefs, practices, and history of various…

4 months ago

List of Universities Offering Public Administration in Nigeria

Public administration is the field of study and practice that focuses on the organization and…

4 months ago