30 Questions
What is the initial number of nuclei of B?
N0
In which direction is the electric field E directed?
Vertically up
What is the angle at which the bob is released at rest?
60⁰
What is the direction of the magnetic field B?
Directed inside the plane of the paper
At time t = t0, what happens to the number of nuclei of B?
Stop changing
What is the pivot point of the light string?
Point O
What is the maximum height attained by the hollow sphere?
v2 / g
What is the time taken to reach the maximum height for the ring?
2v / g sin θ
What is the maximum height attained by the solid sphere?
7v 2 / 10g
What is the time taken to reach the maximum height for the disc?
3v / 2g sin θ
Which object attains a maximum height of 3v 2 / 4g?
Disc
What is the maximum height attained by the object with the angle of incline θ?
2v sin θ / g
What occurs when the total mechanical energy is maximum?
The combination is (III)(iv)(P)
Where does the maximum friction act between the body and the incline?
The combination is (III)(iv)(S)
What is the direction of the magnetic field in the square frame of wire?
Perpendicular to the frame
What is the value of 'n' in the equation for the charge on the capacitor?
3
What is the radius of curvature of the concave mirror?
0.5 m
What is the height of the point light source above the set-up?
0.3 m
What is the acceleration of the electron due to the electric field?
eE/m
What is the velocity component of the electron parallel to the plates?
v0
What is the angular deviation of the electron from its initial direction of motion?
tan^-1(vy/v0)
What is the time taken by the electron to cross the electric field?
l/v0
What is the pitch of the helical path of the electron?
2eBV/πm
What is the value of the pitch of the helical path of the electron in millimeters?
9 mm
Which of the following statements about the compound HO OH H OH H CH2OH OH H is true?
It can reduce Tollen's reagent
What is the result of treating oxime of compound Cl with H2SO4/Δ?
A compound P, which on hydrolysis produces Q and R
What is true about R?
It gives brisk effervescence of CO2 with aqueous NaHCO3
What is Q?
An aliphatic primary amine
What happens when Q is subjected to Hofmann exhaustive methylation?
It produces a compound that has very high solubility in water
What is the result of reacting Q with CHCl3/NaOH?
It produces a foul-smelling compound
This quiz is based on a FIITJEE physics question paper and focuses on the concept of radioactive decay. It includes questions on the decay constants and the number of nuclei present at a given time.
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