Subject :NSO Class : Class 6
Class : Class 7
The time taken to complete one oscillation - a left swing and a right swing - is called the time period (T); it is measured in seconds.A swing takes 5 seconds to complete 25 oscillations. That means it would take 1 second to complete 25 ÷ 5 = 5 oscillations. That also means it would take 1 ÷ 5 = 0.2 seconds to complete 1 oscillation.So, the time period of the swing is 0.2 seconds. Hence, the right answer is Option C.
Class : Class 10
the answer is wrong , it should be 0.2s. please kindly provide the solution to this question.
Class : Class 8
I think this answer is wrong. It should be 0.2 seconds, according to the definition of a Time Period in oscillatory motion.
Class : Class 7
The answer seems to be wrong. 5 seconds to complete 25 oscillations. That means for one oscillation it is 5/25 = 0.2 seconds. 'Period' usually means one complete oscillation that is 0.2 seconds and that is not given.
Class : Class 7
The swing completes 25 oscillations in 5 seconds So, It will complete 1 oscillation in 5/25 seconds = 0.2 secondsSo, the time period of the swing is 0.2 seconds. Hence, the right answer is Option C.
Subject :NSO Class : Class 5
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Subject :NSO Class : Class 7
The given table enlists types of silk (P) and plants on the leaves of which the related silkworm feeds (Q). Select the option which completes the table.
X | Y | Z | |
---|---|---|---|
A | Som | Castor | Arjun |
B | Arjun | Castor | Sal |
C | Sal | Saja | Arjun |
D | Castor | Sal | Som |
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 5
Ans 3:
Class : Class 6
moon does not have its own light it reflects of sun and as it is completely blocked by earth the suns light does not reflect and we do not see any phase of the moon .hence ans is c
Ans 5:
Class : Class 5
According to any phases of the moon diagram, a full moon will be behind the Earth. Even lunar eclipse will be on a full moon day . New moons position will be the opposite of a full moon,i.e. between the earth and sun
Ans 8:
Class : Class 5
IT SHOULD NOT BE C! B IS THE RIGHT ANSWER. IF SUN EARTH MOON= FULL MOON. IF SUN MOON EARTH = NEW MOON. .
Ans 11:
Class : Class 6
if the answer is c, then they would have mentioned that it is a lunar eclipse. so it should be b
Ans 13:
Class : Class 5
This is absolutely incorrect. SOF should verify such answers. The question is about the phase of the moon. Even if it is a lunar eclipse it falls on a full moon day. The answer is B
Ans 21:
Class : Class 1
I think that c is correct as the moon is behind the earth , so there will be no light reaching the moon . Thus, it will be new moon .
Ans 23:
Class : Class 5
THE MOON IS NOT STRAIGHT TO THE EARTH. MOON HAS SLIGHT SLANTING REVOLUTION. THAT IS WHY WE HAVE DIFFERENT PHASES OF THE MOON. IF THE MOON IS AT THE POSITION OF..... SUN---EARTH---MOON.......SO THAT WILL BE FULL MOON. FULL MOON IS GIVENN AT OPTION B. SO MOST OF US LIKE ME DID B BUT IT IS SHOWING C AS THE CORRECT ANSWER. BUT AS I THINK THAT EVERYTHING HAS A REASON.1. THE SOLUTION IS THE MEANINGFUL WAY IT IS GOOD. BUT IF YOU OPPOSE THIS, SO 2. THAT THE CHART IS SHOWING THAT....... SUN-----EARTH-----MOON. SO ACCORDING TO THE CHART, IT IS A LUNAR ECLIPSE IN WHICH THE MOON IS COMPLETLY BLACK. SO OPTION C HAS A REASON. SHARE YOUR IDEAS ALSO.
Ans 24:
Class : Class 5
It is a full moon and I had enough of your mistakes SOF now, I am going to beat you people.
Ans 28:
Class : Class 5
Full moon occurs when light is spread all over the surface of the moon...but in the picture the moon is blocked by earth and the moon will remain dark.Hence,the answer is (c) new moon
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 3