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Anuraj Ahada
Subject: Science
, asked on 5/2/18
What is liquor
Answer
1
Hardik Gupta
Subject: Science
, asked on 4/2/18
How does lightning usually strikes tall buildings? How will you detect presence of charge on a body?
Answer
1
Akanksha Kurial
Subject: Science
, asked on 1/2/18
Earthquakes are caused by movements of tectonic plates. Explain the phenomenon. Describe seismic zone, seismic focus and epicentre w.r.t the earth's plates. Draw a neat diagram to show locations of focus and epicenter. What other reasons can also cause earthquakes?
Answer
1
Akanksha Kurial
Subject: Science
, asked on 1/2/18
Explain using a flow line, how a lightning conductor works. Draw a neat diagram showing a lightning conductor fixed to an apartment building.
Answer
1
Akanksha Kurial
Subject: Science
, asked on 1/2/18
Mention three precautions that you will take to protect yourself if earthquake strikes when you are inside the house.what will be the safequards required if you are outside the house during an earthquake?
Answer
1
Akanksha Kurial
Subject: Science
, asked on 31/1/18
A cordless telephone is preferred to a wired one during lightning? Explain.
Answer
1
Akanksha Kurial
Subject: Science
, asked on 31/1/18
Why is gold most preferred metal for making the leaves of an electroscope? What is the function of the thin metal plates on the side walls of the electroscope? If the metal disc of an electroscope is replaced by an ebonite plate and a charged body is brought in contact, will there be any effect on the leaves? Explain .
Answer
1
Akanksha Kurial
Subject: Science
, asked on 31/1/18
Which of the following will stand the maximum and minimum risk of getting struck by lightning? Give resaon for each. ( Minimum as well as miximum)
a) a person holding umbrella
b) a person riding a bicycle
c) a person squatting low on the ground
d) a person standing in an open field
Answer
3
Akanksha Kurial
Subject: Science
, asked on 31/1/18
Q.):- Two electroscopes X and Y are connected with a copper wire as shown. What will happen next? Explain.
Answer
2
Akanksha Kurial
Subject: Science
, asked on 31/1/18
Q). Four children, who were playing outside, took shelter under different trees on hearing a thunderstorm. Which of these children has the least chance of getting struck by lightning?
Answer
2
Akanksha Kurial
Subject: Science
, asked on 30/1/18
A negatively charged balloon is brought near a neutral metal sphere fixed on an insulating stand. Draw the distribution of charges on the metal sphere.
Answer
1
Akanksha Kurial
Subject: Science
, asked on 30/1/18
What are the possible outcomes of bringing two charged bodies close to each other?
Answer
4
Akanksha Kurial
Subject: Science
, asked on 29/1/18
If the intensities recorded for two different events of earthquake on the ritcher scale are 3 and 7 respectively, how many times more would be the amplitude in the latter case?
Answer
2
Akanksha Kurial
Subject: Science
, asked on 29/1/18
A glass rod can be charged by holding in hand, while an iron rod can be charged only by attaching it to an insulator. Explain.
Answer
1
Akanksha Kurial
Subject: Science
, asked on 29/1/18
If a building materials that are good conductors, would lightning strike the building? Would a lightning conducter be still required to e installed? Why/ what not?
Answer
1
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What are you looking for?
a) a person holding umbrella
b) a person riding a bicycle
c) a person squatting low on the ground
d) a person standing in an open field