KOTA's MITRA

• shoyab (350) Points
• Latest Answer: 2 months ago
• In: foundation

If the points (– 2, 1), (a, b) and (4, – 1) are collinear and a – b = 1, then find the values of a and b.

If the points (– 2, 1), (a, b) and (4, – 1) are collinear and a – b = 1, then find the values of a and b.

• coordinate geometry

• shoyab (350) Points
• Latest Answer: 2 months ago
• In: JEE

Find the value of k for which the points are collinear

Find the value of k for which the points are collinear (8, 1), (k, – 4), (2, – 5).

• coordinate geometry

• shoyab (350) Points
• Latest Answer: 2 months ago
• In: JEE

Find the area of quadrilateral whose vertices, taken in order, are

Find the area of quadrilateral whose vertices, taken in order, are A(–3, 2), B(5, 4), C (7, – 6) and D (–5, –4).

• coordinate geometry

• apurva (50) Points
• Latest Answer:
• In: JEE

to find the integral

• integration

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

Two water drops each of radius r coalesce to form a bigger drop. If T is the surface tension, the surface energy released in this process is:

(1) 4πr2T (2) 8πr2T (3) 12πr2T (4) 6πr2T

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

A particle moves on a circular path of radius 1 m. Find its displacement when it moves from A → B → A. Also, its distance are it moves from A → B → A.

(1) Distance = 2 m, Displacement = 4π m (2) Distance = 2 m, Displacement = 5π m (3) Distance = 4π m, Displacement = 2 m (4) Distance = 2 m, Displacement = 2 m

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

Statement-I: Melting point of neopentane is greater than that of n-pentane. Statement-II: Neopentane gives only one mono-substituted product

(1) Both S-I and S-II are correct (2) Both S-I and S-II are incorrect (3) S-I is incorrect but S-II is correct (4) S-I is correct but S-II is incorrect

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

Nature of compounds TeO________and_________ TeH is and respectively.

(1) Oxidising and Reducing respectively (2) Highly acidic and highly basic respectively (3) Reducing and Basic respectively (4) Basic and oxidising

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

An equilateral prism is made of a material of refractive index √ 2. Find the angle of incidence for minimum deviation of the light ray

(1) 60◦ (2) 30◦ (3) 37◦ (4) 45◦

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

In 3, 3-dimethylhex-1-en-4-yne, the number of sp, sp² and sp³ carbon atoms, respectively are:

(1) 2, 2, 4 (2) 2, 2, 2 (3) 4, 2, 2 (4) 2, 4, 2

• Jee

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

Total number of terms in an A.P. are even. Sum of odd terms is 24 and sum of even terms is 30. Last term exceeds the first term by 21 2 . Find the total number of terms.

(1) 10 (2) 12 (3) 14 (4) 16

• Jee

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

In group 17, which property does not follow the regular trend?

(1) Electron affinity

(2) Ionisation energy
(3) Covalent radii
(4) Ionic radii

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

Let a1, a2, a3, . . . be an A.P. and P12 k=1 a2k−1 = −72 5 a1 and Pn k=1 ak = 0. Then the value of n is:

(1) 8
(2) 10
(3) 11
(4) 13

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

What are the units of viscosity, intensity of wave, and pressure gradient?

(1) Viscosity: kg ·m−1 · s−1, Intensity of wave: kg ·m−1 · s−3, Pressure Gradient: kg ·m−2 · s−2
(2) Viscosity: N · s · m−2, Intensity of wave [Read More]

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

Which of the following statement(s) is correct for the adiabatic process?

 (1)
􀀀1
0


Molar heat capacity is zero.
(2)
􀀀1
1


Molar heat capacity is infinite.
(3)
􀀀2
1


Work done on gas is equal to increase in interna [Read More]

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

The moment of inertia of a uniform rod of mass m and length l is α when rotated about an axis passing through the centre and perpendicular to the length. If the rod is broken into equal halves and arranged as shown, then the moment of inertia about the given axis is:

(1) 2α
(2) α/2
(3) 4α
(4) α

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: JEE

Which of the following is the correct order of basic strength of amines in aqueous medium?

(1) CH3NH2 > (CH3)2NH > (CH3)3N > NH3
(2) (CH3)2NH > CH3NH2 > (CH3)3N > NH3
(3) CH3NH2 > NH3 > (CH3)2NH > (CH3)3N
(4) (CH3)3N > (CH3)2NH > CH3NH2 > NH3

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: NEET

The greatest value of n, where n ∈ N, such that 3n divides 50! is:

(1) 20
(2) 21
(3) 22
(4) 23

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: NEET

Which of the following molecules hydrolyzes fast?

(1) Methyl chloride
(2) Acetamide

(3) Methyl acetate
(4) Ethyl formate

• .

• Mohammad Anas (13750) Points
• Latest Answer: 4 months ago
• In: NEET

Snow-blindness in Antarctic region is due to

(1) Freezing of fluids in the eye by low
temperature
(2) Inflammation of cornea due to high dose
of UV-B radiation
(3) High reflection of light from snow
(4) Damage to retina caused by infra-red
rays

• .