|
|
Dark BotI m in 10 T1 |
|
Dark Bot
EduRev Class 9
|
Content, tests & courses saved by you for accessing later. (visible to you only)
Currently preparing for
Top Scoring Tests by Dark
Discussed Questions
|
Dark Bot upvoted • Mar 20, 2019 |
If you had three apples and four oranges in one hand and four apples and three oranges in the other hand, what would you have?
|
Molik answered |
Nothing !!! bcoz all fruits will fall down
|
|
Dark Bot upvoted • Mar 17, 2019 |
Under what circumstances Louis XVI had to call the meeting of state general ?what was the result?
|
|
Molik answered |
To increase the taxes he called a meeting . this result in that the third estate people wants the principle of voting to be one people one vote instead of one estate one vote . rhe king refused to agree it and result of it the third estate member walked out and forms a new assembly known as national assembly
|
|
Dark Bot upvoted • Mar 17, 2019 |
State wein's displacement law?
|
|
Molik answered |
Women's displacement law states that the black body radiation curvefor different temperature peaksat a wavelength inversely proportional to temperature
|
|
Dark Bot upvoted • Mar 17, 2019 |
Needed a Test for English Olympiad?
|
|
Molik answered |
Enrolled a course for Olympiad, u will get there
Electronic configuration of potassium ion?
|
|
Dark Bot answered • Feb 22, 2019 |
Potassium ion = K+
atomic no. of K = 19
so,
electronic configuration of K ::
1s² + 2s² + 2p^6 + 3s² + 3p^6 + 4s¹
now it is ask electronic configurations of K+
as it has +ve charge so there is loss of es–
so now electronic configuration Will be :::
1s² + 2s² + 2p^6 + 3s² + 3p^6
atomic no. of K = 19
so,
electronic configuration of K ::
1s² + 2s² + 2p^6 + 3s² + 3p^6 + 4s¹
now it is ask electronic configurations of K+
as it has +ve charge so there is loss of es–
so now electronic configuration Will be :::
1s² + 2s² + 2p^6 + 3s² + 3p^6
Why antibiotics not effective on viral diseases?
|
|
Dark Bot answered • Feb 19, 2019 |
Antibiotics attacks on biochemical pathways used by different microbes . virus don't have any biochemical pathways so antibiotics is uneffective
Find the missing term (?) in the following series2, 6, 30, 260, ?- a)470
- b)510
- c)630
- d)3130
Correct answer is option 'D'. Can you explain this answer?
Find the missing term (?) in the following series
2, 6, 30, 260, ?
a)
470
b)
510
c)
630
d)
3130
|
|
Dark Bot answered • Feb 19, 2019 |
( 1¹ + 1 ) , ( 2² + 2 ) , ( 3³ + 3 ) , ( 4⁴ + 4 ) , so next option will be ( 5^5 + 5 )
A rectangular block of wood of dimensions 40cm x 20cm x 10cm is kept on a table top. The pressure is greatest when it is rested on- a)equal for all cases
- b)20cm x 10 cm
- c)40cm x 10cm
- d)40cm x 20cm
Correct answer is option 'B'. Can you explain this answer?
A rectangular block of wood of dimensions 40cm x 20cm x 10cm is kept on a table top. The pressure is greatest when it is rested on
a)
equal for all cases
b)
20cm x 10 cm
c)
40cm x 10cm
d)
40cm x 20cm
|
|
Dark Bot answered • Jan 23, 2019 |
Pressure will be greatest when area in contact will be smallest
so greatest pressure will produced when wood is placed on table top with the dimensions of 20 × 10
so greatest pressure will produced when wood is placed on table top with the dimensions of 20 × 10
|
|
Dark Bot asked • Jan 23, 2019 |
Why earth rotates from West to east?
|
Harleen Rani answered |
We say that sun rises from east and sets in the West it
means earth rotates from West to East.
means earth rotates from West to East.
|
|
Dark Bot asked • Jan 19, 2019 |
What is difference between fundamental right and constitutional right?
|
Arzoo answered |
If a legal right of a person is violated, he can move to an ordinary court, but if a fundamental right is violated the Constitution provides that the affected person may move to High court or Supreme Court. ... Fundamental rights are protected against invasion by the executive, legislature and the judiciary.
"Just follow me now"
"Just follow me now"
What is the area of cylinder?
|
|
Dark Bot answered • Jan 18, 2019 |
Total surface area = 2πr(r+h)
Curved surface area = 2πrh
Curved surface area = 2πrh
If the earth will stop its rotation and revolution will there be any change in our mass?
|
|
Dark Bot answered • Jan 16, 2019 |
No there is no change in our mass . but our weight will increase as gravity increases due to earths stoppage.
as mass is constant and weight = mass × gravity
as mass is constant and weight = mass × gravity
The mass of one mole of NaOH will be (At. mass of Na = 23, O = 16, H = 1)- a)16
- b)40
- c)80
- d)23
Correct answer is option 'B'. Can you explain this answer?
The mass of one mole of NaOH will be (At. mass of Na = 23, O = 16, H = 1)
a)
16
b)
40
c)
80
d)
23
|
|
Dark Bot answered • Jan 15, 2019 |
Moles = Given mass / molecular mass
1 = Given mass / molecular mass of NaOH
1 = Given mass / 40
40 = Given mass
1 = Given mass / molecular mass of NaOH
1 = Given mass / 40
40 = Given mass
A diesel engine supplies 25,000 J of energy in 50 seconds. Power of engine would be- a)7500 W
- b)250 W
- c)25000 W
- d)500 W
Correct answer is option 'D'. Can you explain this answer?
A diesel engine supplies 25,000 J of energy in 50 seconds. Power of engine would be
a)
7500 W
b)
250 W
c)
25000 W
d)
500 W
|
|
Dark Bot answered • Jan 15, 2019 |
Power = Work done / Time
= 25000 / 50
= 500J/s or 500W
= 25000 / 50
= 500J/s or 500W
Fetching relevant content for you
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup