• apurva (100) Points
• Latest Answer:
• In: JEE

Let be the rth term of an A.P. whose first term is a and common difference is d. If for some positive integers m, n, then a - d equals

Let  be the rth term of an A.P. whose first term is a and common difference is d. If for some positive integers m, n,  then a - d equals

• sequence & Series

• shoyab (350) Points
• Latest Answer: 4 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: 4 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: 4 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 (100) Points
• Latest Answer:
• In: JEE

to find the integral

• integration

• Mohammad Anas (13750) Points
• Latest Answer: 5 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: 5 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: 5 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: 5 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: 5 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◦

• .