46. Which of the following physical quantities have the same dimensions?

1. 1. Momentum and impulse

   
   
   

   2. Power and young's modulus

   
   
   

   3. Energy and angular momentum

   
   
   

   4. Force constant and moment of inertia

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

---

47. The period of a satellite in a circular orbit of radius R is T. The period of another satellite in circular orbit of radius 4 R is

1. 1. 4 T

   
   
   

   2. T / 4

   
   
   

   3. T / 8

   
   
   

   4. 8 T

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

---

---

48. An iron piece and a wooden piece have equal weights in air. If they are removed from air to vacuum

1. 1. The iron piece appears to weight more

   
   
   

   2. The wooden piece appears to weigh more

   
   
   

   3. There is no change in the weight of either

   
   
   

   4. None of the above.

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

---

49. A simple pendulum is vibrating in an evacuated chamber. It will

1. 1. Come to rest eventually

   
   
   

   2. Oscillate for ever with the same amplitude and Frequency

   
   
   

   3. Oscillate with the same amplitude will Decreases with time

   
   
   

   4. Oscillate with the same amplitude but frequency will Decrease with time

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

---

---

50. Which of the following physical quantity is dimensionless?

1. 1. Angle

   
   
   

   2. Strain

   
   
   

   3. Specific gravity

   
   
   

   4. All of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

---