Time is an example of :
(A) Scalar (B) Vector
(C) Scalar or vector (D) Neither scalar nor vector
1 Answers
Talk Doctor Online in Bissoy App
A card is drawn at random from a well-shuffled deck of 52 cards. Find the probability that card drawn is neither a king nor a queen
Number of kings and queen in a deck of 52 cards = 8 P( either a king or a queen) = 8/52 = 2/13 P(neither a king nor a queen) = 1-2/13...
1 Answers 1 views
When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary.
(c) The surface tension may be zero. (d) The contact angle may be 90°. Explanation: The rise in a capillary tube is given as, h = 2S.cosθ/rρg The capillary tube has a certain...
1 Answers 1 views
Which one of the following methods is neither meant for the synthesis nor for separation of amines?
(c) :- In Wurtz reaction alkyl halide reacts with sodium metal in the presence of dry ether to give alkane.
1 Answers 1 views
A system X is neither in thermal equilibrium with Y nor with Z.
The correct answer is (c) (c) may be in thermal equilibrium.
1 Answers 1 views
In a radioactive decay, neither the atomic number nor the mass number changes.
The correct answer is (d) photon.
1 Answers 1 views
In a box there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
(e) If the drawn ball is neither red nor green, then it must be blue, which can be picked in 7C1 = 7 ways. One ball can be picked from...
1 Answers 4 views
If vector α=3i-j and vector β=2i+j-3k,then express vector β in the form vector β =vector β1+vector β2,
Thanks mam And big thanks to this app that solves most of the jee question
1 Answers 1 views
Neither ‘q’ nor ‘w’ is a state function but “ q + w” is a state function. Assign reason.
ΔU = q + w and ‘∆U’ is a state function, which depends upon initial and final states of the system and not upon its path.
1 Answers 1 views
Give reason: (i) Neither q nor w is a state function but q+w is a state function.
(i) q+w =∆U. As ∆U is a state function, hence q+w is a state function. (ii) On dissociation ,entropy increases, i.e. ,∆S is +ve .Though ∆His +ve but if T∆S>∆H, then...
1 Answers 1 views
Which among the following quantity have neither units nor the dimensions
(a) Realtive permeabiolity
1 Answers 1 views