Physics

Question 1

In SHM At mean position velocity and K. E is

Answer 1

Maximum

Question 2

In SHM At mean position displacement and acceleration is

Answer 2

Zero

Question 3

Velocity recquired to cover half of amplitufe

Answer 3

V=v°√3/4

Question 4

Velocity recquired to complete from mid to half of extreme position

Answer 4

V=v°√3/4

Answer 5

Time

Question 6

Time to cover half of amplitufe

Answer 6

T/12

Question 7

P.E= 50%K.E

Answer 7

X=x°/√2

Question 8

Sin^- (1/2 )=

Answer 8

30°

Question 9

3.14/6=

Answer 9

30°

Question 10

Tan(30) =

Answer 10

√3/2

Question 11

Tan(60) =

Answer 11

√3

Question 12

Tan(45) =

Answer 12

1

Question 13

Cos(30) =

Answer 13

√3/2

Question 14

Cos(60) =

Answer 14

1/2

Question 15

Cos(90) =

Answer 15

0

Question 16

Sin(30) =

Answer 16

1/2

Question 17

Sin(60) =

Answer 17

√3/2

Question 18

Sin(0)

Answer 18

0

Question 19

Sin(90) =

Answer 19

1

Question 20

Sin(45) =

Answer 20

√2/2

Question 21

Cos(45) =

Answer 21

√2/2

Question 22

Cos(0) =

Answer 22

1

Question 23

Source is moving toward stationary observer than pitch of sound will be

Answer 23

Increase

Question 24

A siren emitting sound of frequency 800Hz is going away from a static listener with a velocity of 300m/s Frequency of the sound to be heard by the listener (Take velocity of sound as 330m/s.

Answer 24

733.3Hz