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Ayaan Raj Singh   from Jaishree periwal high school, jaipur
Subject :Physics    Class : Class 6

If the same motion occurs again and again, it is said to be repetitive motion. Repetitive motion that repeats itself at regular intervals of time is called periodic motion. A pendulum undergoes periodic motion. The time taken by a pendulum to complete its one oscillation is known as its time period. Frequency of a pendulum is defined as the number of oscillations completed in 1 second.
The frequency of the bob of the pendulum described in above question is

A 0.0625 Hz
B 0.83 Hz
C 0.083 Hz
D 0.625 Hz


Question not understood

Ans 1:

Gaurav Gupta   from St Kabir public school , Panchkula
Class : >Class 6
20

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Navya   from Oberoi International School, mumbai
Subject :Physics    Class : Class 6

In this section, each question has two matching lists. Choices for the correct combination of List-I and List-II are given as options (A), (B), (C) and (D) out of which one is correct.

List-I List-II
(P) Shadow of the moon falling on the earth 1. Reflection
(Q) Pinhole camera 2. Solar eclipse
(R) Full moon day 3. Inverted image
(S) Bouncing back of light 4. Lunar eclipse

Code :
P Q R S
A 1 2 3 4
B 2 3 4 1
C 4 3 2 1
D 1 3 2 4


Aree ye kaise?

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Sreejani Bhaduri   from NPS, Bengaluru
Subject :Physics    Class : Class 6

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RITWIK SINGH   from DAV Public School, Angul
Subject :Physics    Class : Class 7

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mananjain   from Modern School, Jaipur
Subject :Physics    Class : Class 7

Ans 1:

Arya   from Global Indian International School, Ahmedabad
Class : >Class 8
20

Ans 2:

Sivaanshi   from Satya prakash, Jabalpur
Class : >Class 8
20

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Jaydeep Mohapatra   from ,
Subject :Physics    Class : Class 7

In each of the following questions, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of the statements, mark the correct answer as
Assertion : The position-time graph of uniform motion of a body can have negative slope.
Reason : When the speed of body decreases with time, the position-time graph of the moving body has negative slope.

A If both assertion and reason are true and reason is the correct explanation of assertion
B If both assertion and reason are true but reason is not the correct explanation of assertion
C If assertion is true but reason is false
D If assertion is false but reason is true.


Please tell the answer i think its option B but it is telling that B is wrong!!!

Ans 1:

Pushkar kumar   from DELHI PUBLIC SCHOOL, Gaya
Class : >Class 7
20

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Vansh   from Tagore International School, New Delhi
Subject :Physics    Class : Class 6

In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion : The dark part of a shadow that receives small amount light from the source is umbra.
Reason : Umbra is formed only by an extended source of light.

A If both assertion and reason are true and reason is the correct explanation of assertion.
B If both assertion and reason are true but reason is not the correct explanation of assertion.
C If assertion is true but reason is false.
D If assertion is false but reason is true.


what is umbra?

Ans 1:

Niladri Chatterjee   from Maharishi Vidya Mandir, Kukatpally, Hyderabad
Class : >Class 8
20

Ans 2:

Niladri Chatterjee   from Maharishi Vidya Mandir, Kukatpally, Hyderabad
Class : >Class 8
20

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KavishJShah   from Sunflower school, Hyderabad
Subject :Physics    Class : Class 6

Ans 1:

Niladri Chatterjee   from Maharishi Vidya Mandir, Kukatpally, Hyderabad
Class : >Class 8
20

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Dalia Datta   from NTS, KOLKATA
Subject :Physics    Class : Class 6

The magnetic field of a magnet is an invisible field which is created by magnetism. The force for magnets to attract other objects is caused by moving electrons. Magnets are made by using electrical and mechanical methods. A temporary magnet can be made by passing electricity through a coil.
Moving _____ is the cause of magnets repelling or attracting each other or other objects.

A protons
B electrons
C molecules
D neutrons


Ans 1:

Aadarsh S Nair   from BVM Global, Chennai
Class : >Class 6
20

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Aahan pal   from KV no.1 bolangir, Bolangir
Subject :Physics    Class : Class 6

Ans 1:

KavishJShah   from Sunflower school, Hyderabad
Class : >Class 8
20

Ans 2:

KavishJShah   from Sunflower school, Hyderabad
Class : >Class 8
20

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