Class XI Revision Quiz Week 1 Day 2 for JEE & BITSAT Exams

Question 1

A line L intersects the three sides BC, AC,AB of a triangle ABC at P,Q and R respectively. Then which among the following is correct?

Question 2

A line passes through (2, 2) and is perpendicular to the line 3x + y = 3. Its y-intercept is_____.

Question 3

Let PQR be a righ tangled isosceles triangle, righ tangled at P (2, 1). If the equation of the line QR is 2x + y = 3, Then the equation representing the pair of lines PQ and PR is

Question 4

The equation of the image of the circle x² + y² +16x - 24y + 183 = 0 by the line mirror 4x+7y+13=0 is

Question 5

If the lines 3x-4y-7=0 and 2x-3y-5=0 are the two diameters of the circle of area 49π, the equation of the circle is

Question 6

A sailor is on the ship and he tries to fix a bolt at the top of the mast, but the bolt is dropped by him. The ship is sailing towards east at 8 m/s and the mast of the ship is 20m high. How much distance will the bolt travel after hitting the deck?

Question 7

An athlete of long jumping takes a jump. What will be the factors which determine the length of the jump?

Question 8

A ball is dropped from a height h. If the coefficient of restitution be e, then the body rebounds to a height of

Question 9

A point moves with uniform acceleration and v₁,v₂ and v₃ denote the average velocities in the three successive intervals of time t₁, t₂, and t₃. Which of the following relation is correct?

Question 10

A stone is thrown vertically at a speed of 30 ms^-1 making an angle of 45 º with the horizontal. What is the maximum height reached by the stone? Take g = 10 m s^-2.

Question 11

According to Heisenberg’s uncertainty principle, the product of uncertainties in position and velocities for an electron of mass 9.1 × 10^–31 kg is

Question 12

What are the number of neutrons in dipositive zinc ions with mass number 70 is?

Question 13

Which of the following sets of quantum numbers represent an impossible arrangement (n, l, m, m_s respectively)

Question 14

The electron in a hydrogen atom in the ground state absorbs energy equal to 12.1 ev and gets elevated to the highest possible excited state. What will be change in the angular momentum of the electron ? (h=planck’s constant )

Question 15

A stationary He⁺ ion emitted a photon corresponding to the first line of the Lyman series. The photon liberates a photo electron from a stationary hydrogen atom in ground state. The kinetic energy of electron is