Aryl group is a simple, fragrant compound in which one hydrogen atom is detached from the ring and allows it to get connected to a carbon chain.... View Article
In general, wood is recognised as an anisotropic material. However, in engineering elastic model terms, wood is considered as an orthotropic... View Article
KCl is more ionic because the ionic character increases as down the group while decreases along the period in the periodic table. Also, the... View Article
The two main conditions for equilibrium are given below: The first condition is that the net force on the object must be zero. If the net force... View Article
A complex number z = x + iy can be written in polar form z = reiθ that means z = r(cos θ + i sin θ). Here, θ is known as the argument of z and r... View Article
Let P be the principal amount of money. Given that the rate of interest si 2%, i.e. R = 2% Let us assume that in T years, the principal amount... View Article
If the sequence {an} is in GP, such that a4/a6= 1/ 4 and a2 + a5 = 216, then a1 is equal to (1) 12 or 108/7 (2) 10 (3) 7 or 54/7 (4) None of... View Article
Solution: Given √2, 2/3, 2√2/9,... is 16/2187 This is a GP with a = √2 r = √2/3 The nth term of GP = arn-1 √2(√2/3)n-1 = 16/2187... View Article
If a, b and c are positive numbers in a GP, then the roots of the quadratic equation (loge a)x2 -(2 loge b)x+ (loge c)= 0 are Solution: Given... View Article
Solution: Given sum of infinite geometric series = 4 a/(1-r) = 4 ..(i) Second term = 3/4 So ar = ¾ ..(ii) a = 3/4r Substitute a in (i)... View Article
Solution: Given a,b,c are in AP Check the options. If a2, b2, c2 are in AP, then b2-a2 = c2-b2 (b-a)(b+a) = (c-b)(c+a) Since (b-a = c-b... View Article
Solution: LCM of 3 and 5 is 15. The numbers between 1 and 100 which are divisible by both 3 and 5 are 15, 30, 45, ..90 a = 15 an = 90 d =... View Article
Solution: Let x = log2 7 Then 2x = 7 (since logb(x) = y, then by = x) This is possible only for irrational number. Hence option (3) is the... View Article
