When the sun, moon and the earth are as shown in the diagram above an observer standing in X is in
Penumbra and sees a partial eclipse
Penumbra and sees a total eclipse
umbra and sees a partial eclipse
umbra and sees a total eclipse
Correct answer is A
No explanation has been provided for this answer.
destructively to produce a wave of larger amplitude
destructively to produce a wave of smaller amplitude
constructively to produce a wave of larger amplitude
constructively to produce a wave of smaller amplitude
Correct answer is A
No explanation has been provided for this answer.
tan θ = coefficient of static friction
cos θ = coefficient of dynamic friction
sin θ = coefficient of sliding friction
sec θ = limiting frictional force
Correct answer is A
No explanation has been provided for this answer.
T =2√3/3
T= 2F
T = 5V3F/3
T = 5F
Correct answer is D
No explanation has been provided for this answer.
mg sinθ and the normal reaction
mg sinθ and the force of friction
mg sinθ and the normal reaction
mg cosθ and the normal reaction
Correct answer is B
No explanation has been provided for this answer.