Vector Algebra CBSE Maths 12 Science MCQ Answers in English to enable students to get Answers in a narrative video format for the specific question.

Expert Teacher provides Vector Algebra CBSE Maths 12 Science MCQ Answers through Video Answers in English language. This video solution will be useful for students to understand how to write an answer in exam in order to score more marks. This teacher uses a narrative style for a question from Vector Algebra not only to explain the proper method of answering question, but deriving right answer too.

Please find the question below and view the Answer in a narrative video format.

** Question:**

** Find the projection of the vector on the vector **

** Answer Video in** **English****:**

You can select video Answers from other languages also. Please check Answers in ( Hindi )

**Question 1** : Find the scalar quantities from the following:

(i) Time period (ii) Distance (iii) Force

(iv) Velocity (v) Work done (View Answer Video)

**Question 2** : Find the projection of the vector on the vector (View Answer Video)

**Question 3** : Find the magnitude of two vectors a and b having the same magnitude and such that the angle between them is and their scalar product is 1/2. (View Answer Video)

**Question 4** : Find a vector of magnitude making an angle of with x-axis, with y-axis and an acute angle with z-axis. (View Answer Video)

**Question 5** : Find the value of x and y so that the vectors and are equal. (View Answer Video)

**Question 1** : Evaluate , if 2P(A)=P(B)= and =. (View Answer Video)

**Question 2** : The probabilities of two students A and B coming to the school in time are and respectively. Assuming that the events ' A coming in time ' and

' B coming in time ' are independent. Find the probability of only one. Write of them come in time atleast one advantage of coming to school in time. (View Answer Video)

**Question 3** : A bag I contains 5 red and 4 white balls and a bag II contains 3 red and 3 white balls. Two balls are transferred from the bag I to the bag II and then one ball is drawn from bag II. If the ball drawn from the bag II is red, then find the probability that one red ball and one white ball are transferred from the bag I to the bag II. (View Answer Video)

**Question 4** : In a game, a man wins rupee five for number six and losses rupee one for any other number, when a fair die is thrown. The man decided to throw a die thrice but to quit as and when he gets a six. Find the expected value of the amount he wins/losses. (View Answer Video)

**Question 5** : Four cards are drawn successively with replacement from a well shuffled deck of 52 cards. What is the probability that:

Only 2 cards are spades? (View Answer Video)

**Question 1** : On which of the following intervals in the function strictly decreasing? (View Answer Video)

**Question 2** : The normal to the curve passing (1, 2) is : (View Answer Video)

**Question 3** : It is given that at x=1, the function attains its maximum value on the interval[0,2]. Find the value of a? (View Answer Video)

**Question 4** : The maximum value of is, (View Answer Video)

**Question 5** : If , then the approximate value of f (3.02) is (View Answer Video)

**Question 1** : Find the distance of point from the plane (View Answer Video)

**Question 2** : Find the angle between line and the plane 2x - y + 2z -13 = 0. (View Answer Video)

**Question 3** : What is the distance of the point (p, q, r) from the x-axis ? (View Answer Video)

**Question 4** : Find the co-ordinates of the point where the line through the points (3, -4, -5) and (2, -3, 1) crosses the plane

2x + y + z = 7. (View Answer Video)

**Question 5** : Find the distance between the point (5, 4, -6) and its image in xy-plane. (View Answer Video)