10
Minutes
24
Questions
1 / -0
Marking
Q1. A man can throw a stone to a maximum distance of 80 m. The maximum height to which it will rise, is
Q2. A particle starts from rest. Its acceleration (a) versus time (t) graph is shown in the figure. What will be the maximum speed of the particle?
110 m/s
55 m/s
550 m/s
660 m/s
Q3. A stone is projected at angle 30° to the horizontal. The ratio of kinetic energy of the stone at point of projection to its kinetic energy at the highest point will be
1 : 2
1 : 4
4 : 1
4 : 3
Q4. The horizontal range of a projectile is 2√3 times its maximum height. What is the angle of projection?
tan⁻¹(1/2√3)
tan⁻¹(1/4√3)
tan⁻¹(2/3)
tan⁻¹(3/4)
Q5. Which one of the following statements is not true about the motion of a projectile?
The time of flight of a projectile is proportional to the speed with which it is projected
The horizontal range of a projectile is proportional to the square root of the speed with which it is projected
For a given speed of projection, the angle of projection for maximum range is 45°
At maximum height, the acceleration due to gravity is perpendicular to the velocity of the projectile
Q6. The velocity displacement graph of a particle moving along a straight line is shown in figure. The velocity as function of x (0 ≤ x ≤ 1) is
-10x
-10x+10
-10x²+10x+10
10x-10
Q7. An aeroplane is moving with horizontal velocity u at height h. The velocity of a packet dropped from it on the earth's surface will be (g is acceleration due to gravity)
√(u²+2gh)
√(2gh)
2√gh
√(u²-2gh)
Q8. If the velocity of a particle is given by v = (180 – 16x)^(1/2) m/s, then its acceleration will be
Zero
8 m/s²
-8 m/s²
4 m/s²
Q9. The outermost electronic configuration of the most electronegative element is
2s² 2p³
2s² 2p⁴
2s² 2p⁵
2s² 2p⁶
Q10. Identify the correct order in which the ionic radius of the following ions increases: F⁻, Na⁺, N³⁻
III, I, II
I, II, III
II, III, I
II, I, III
Q11. The elements with atomic number 119 and 120 are yet to be discovered. In which group would you place these elements when discovered?
1 and 2
1 and 4
1 and 3
2 and 3
Q12. The second ionization energy is maximum for
Boron
Beryllium
Magnesium
Aluminium
Q13. Among Na, Mg and F, which has IE₂/IE₁ < 1?
Na
Mg
F
None of these
Q14. In the modern periodic table, a period indicates the value of
Atomic number
Atomic mass
Principal quantum number
Azimuthal quantum number
Q15. A large difference between the fourth and fifth ionization energies indicates the presence of
5 valence electrons in an atom
6 valence electrons in an atom
4 valence electrons in an atom
8 valence electrons in an atom
...and 9 more challenging questions available in the interactive simulator.