10 QA on periodic motion and S H M

10 QA on periodic motion and S H M | Learn Physics

10 Question-Answer on periodic motion and S.H.M.

1. If in the equation y= 5 sin(0.05t + 0.05) , y represents the displacement at the instant t, then which one of the following gives the frequency?

(A) 5

(B) 0.05

(D) 2π × 0.05

Ans: (C)

2. The displacement of the particle is represented by y = 10 sin (5t + θ). The period of oscillation is:

(a) 2π/5s

(b) 5/2πs

(d) 5/πs

Ans: (a)

3. A body is executing S.H.M. When its displacement from the mean position is 4 cm and 5 cm, it has velocities 10 m/s and 8 cm/s respectively. Its periodic time t

(a) π/2s

(b) π s

(d) 2πs

Ans: (b)

4. A particle is simultaneously subjected to two collinear S.H.Ms. For the resultant amplitude to be maximum, the phase diff. between them should be:

(a) Zero

(b) π/2 s

(d) 2π s

Ans: (a, d)

5. A particle is acted simultaneously by two mutually perpendicular S.S.Ms;

X = a cos ωt and y = a sin ωt. The trajectory of motion of the particle will be:

(a) An ellipse

(b) A parabola

(d) A hyperbola

6. A particle is executing S.H.M. when its acceleration increases, its time period

(a) Decreases

(b) Increases

(d) Becomes half

Ans: (c)

7. A particle in S.H.M. Then the graph of velocity as a function of displacement is:

(a) A straight line

(b) A circle

(d) A hyperbola

Ans: ( c)

8. A particle is executing S.H.M. along a straight line so that its period is 12 sec. the time it takes in traversing a distance equal to half its amplitude from its equilibrium is:

(a) 6 sec

(b) 4 sec

(d) 1 sec

Ans:( d)

9. A particle of mass 1 kg is moving in S.H.M. with an amplitude 0.02 m and a frequency of 60 Hz. The maximum force in Newton acting on the particle is:

(a) 188 π²

(b) 144 π²

(d) None of the above

Ans: ( c)

10. The acceleration of a particle in S.H.M. is

(a) Always constant

(b) Maximum at extreme position

(d) Always zero

Ans: (b)

Comments

Biography of Manohar Joshi

Biography of Manohar Joshi: Manohar Gajanan Joshi is an Indian politician who has played a significant role in Maharashtra state politics. Born on December 2, 1937, in a middle-class family in a village called Ganeshpeth in Ratnagiri district, Maharashtra, Joshi's journey into politics was marked by his association with the Shiv Sena, a right-wing regional political party in India. Joshi's political career began in the late 1960s when he joined the Shiv Sena, which was then led by its founder, Bal Thackeray. He quickly rose through the ranks of the party due to his organizational skills, dedication, and ideological alignment with the party's principles, which advocated for the interests of the Marathi-speaking population of Maharashtra. In 1972, Manohar Joshi won his first election to the Brihanmumbai Municipal Corporation (BMC), marking the beginning of his electoral career. He served as a corporator in the BMC and later became the Mayor of Mumbai in 1976. Joshi's tenu...

Professor Cheiro Prophecies about India | 5 predictions Professor Kiro - Kiro made these amazing predictions for India

Professor Cheiro Prophecies: Here is Kiro made these amazing predictions for India: Professor Kiro was born in November 1866 in England. At the age of 17, Kiro came to Mumbai and met astrologer Vednarayan Joshi. With his advice, he will reach the Himalayas, Kashmir, Ladakh and Varanasi. From here, he studied astrology extensively. Kiro made many predictions in his life, which we are giving you here. Cheiro, whose real name was William John Warner, was a prominent Irish astrologer and palmist who gained fame in the late 19th and early 20th centuries. He was known for his accurate predictions and was consulted by various prominent figures of his time, including Mark Twain, Oscar Wilde, and Thomas Edison. Cheiro also made some predictions related to India. Parada Kahanee One of his notable predictions about India was made in his book "Cheiro's World Predictions," published in 1926. In this book, he wrote about the possibility of India gaining independence from British...

Biography of Abbie Hoffman | Early Life and Political Activism - Later Years and Personal Life - Legacy of Abbie Hoffman

Biography of Abbie Hoffman: Abbie Hoffman (November 30, 1936 – April 12, 1989) was an American political and social activist known for his involvement in the counterculture and anti-war movements of the 1960s and 1970s. He was a key figure in the Youth International Party (Yippies) and was known for his theatrical and often humorous protests. Here is a brief biography of Abbie Hoffman: Early Life of Abbie Hoffman: 1. Birth: Abbie Hoffman was born on November 30, 1936, in Worcester, Massachusetts, USA. 2. Education: He attended Brandeis University, where he earned a degree in psychology in 1959. Parada Kahanee Political Activism: 1. Civil Rights Movement: Hoffman began his activism by participating in the civil rights movement during the early 1960s. 2. Youth International Party (Yippies): In 1967, Hoffman, along with Jerry Rubin and others, co-founded the Yippies, a countercultural and anti-authoritarian political party known for its unconventional and theatrical protes...

Biography, Science, Technology, Health, History Blogs

Search This Blog