Hi Friends,

Even as I launch this today ( my 80th Birthday ), I realize that there is yet so much to say and do. There is just no time to look back, no time to wonder,"Will anyone read these pages?"

With regards,
Hemen Parekh
27 June 2013

Now as I approach my 90th birthday ( 27 June 2023 ) , I invite you to visit my Digital Avatar ( www.hemenparekh.ai ) – and continue chatting with me , even when I am no more here physically

Tuesday, 28 January 2025

Hybrid Test Paper

 

Indrayani School

 

Teacher: Hemendra Parekh                                         Subject: Physics

 

Date: 12/10/2024                                                        Start Time: 11:45:00

 

Duration: 5 minutes

 

 

 

1. A body is thrown vertically upwards from the ground. It reaches a maximum height of 20 m in

5 s. After what time it will reach the ground from its maximum height position?

 

Options:

 

A. 2.5 s

 

B. 5 s C. 10 s D. 25 s

 

 

 

 

2. At the first minimum adjacent to the central maximum of a single slit diffraction pattern, the phase difference between the Huygens wavelet from the edge of the slit and the wavelet from the midpoint of the slit is?

 

Options:

 

A. \frac{π}{4} radian B. \frac{π}{2} radian C. \pi radian

D. \frac{π}{8} radian

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