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All posts related to Engineering entrance

Abhisumat Pattnaik
Shared from BITSAT Mock - 11 on Sep 13, 2020 1:22 PM

Three particles A, B and C carrying respectively one, two and three positive charges on them enter into a magnetic field which is perpendicular to their velocities. If the masses of the particles A, B and C are in the ratio 1 : 2 : 3, then choose the correct statement among the following:

 
A will deflect the most.
B will deflect the most.
C will deflect the most.
All will be delectated equally.
None of these
Please type your answer before submitting.
Abhisumat Pattnaik

It isn't mentioned that their Kinetic energies are equal ...

Harshit Singh
Shared from BITSAT - 2018 on Sep 12, 2020 5:58 PM

What is the freezing point of a 10% (w/w) solution of a non volatile solute in water?
[Kf of water = 1.86° K kg mol-1, Molar mass of the solute = 32 g mol-1]

 
90°C
10°C
6.47°C
-6.47°C
Please type your answer before submitting.
Harshit Singh

Idk if such options will be in exam but if yes then this question can be done in 10sec cause there is always depression in freezing point so temperature will be less than 0.

Kalpana Agrawal
Shared from BITSAT - 2017 on Sep 09, 2020 7:34 PM

Directions: Two statements are given followed by four conclusions, I, II, III and IV. You have to consider the statements to be true, even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions can definitely be drawn from the given statements. Indicate your answer.

Statements:
(A) No cow is a chair.
(B) All chairs are tables.
Conclusions:
I. Some tables are chairs.
II. Some tables are cows.
III. Some chairs are cows.
IV. No table is a cow.

 
Either II or III follows.
Either II or IV follows.
Only I follows.
None of these
Please type your answer before submitting.
Kalpana Agrawal

C should be right option

Saday
Posted on Sep 08, 2020 12:29 PM

is equal to:

 
7e
7
2e
2
Please type your answer before submitting.
Saday

I need solution to this question

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Sharnam Faria
Shared from BITSAT - 2018 on Sep 01, 2020 3:37 PM

Let a and b be two non-collinear unit vectors. If and , then |v| is equal to

 
|u|
|u| + |(v + )|
2|v|
|v| + u.
Please type your answer before submitting.
Sharnam Faria

This is wrong, you cant assume the vectors to be i and j because then i cross j will be k whereas for random vectors the cross product will not be a unit vector unless the vectors are perpendicular and so magnitude will be less than 1