AIPMT 2000 | Waves Question 57 | Physics

AIPMT 2000

MCQ (Single Correct Answer)

-1

A string is cut into three parts, having fundamental frequencies n₁, n₂, n₃ respectively. Then original fundamental frequency n related by the expression as

$${1 \over n} = {1 \over {{n_1}}} + {1 \over {{n_2}}} + {1 \over {{n_3}}}$$

$$n = {n_1} \times {n_2} \times {n_3}$$

n $$=$$ n₁ + n₂ + n₃

$$n = {{{n_1} + {n_2} + {n_3}} \over 3}$$

AIPMT 2000

MCQ (Single Correct Answer)

-1

Out of Syllabus

Two stationary sources each emitting waves of wavelength $$\lambda $$, an observer moves from one source to another with velovcity u. Then number of beats heard by him

$${{2u} \over \lambda }$$

$${u \over \lambda }$$

$$\sqrt {u\lambda } $$

$${u \over {2\lambda }}$$

AIPMT 2000

MCQ (Single Correct Answer)

-1

The equations of two waves acting in perpendicular directions are given as
x = $$a$$cos($$\omega $$t +$$\delta $$) and y = $$a$$cos($$\omega $$t + $$\alpha $$), where $$\delta $$ = $$\alpha $$ + $${\pi \over 2}$$, the resultant wave represents

a parabola

a circle

an ellipse

a straight line

NEET Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution