Theory

CH25 - QUANTUM PHYSICS

A polished sheet of magnesium in a vacuum emits electrons when it is illuminated by ultraviolet radiation.(a) State the name of this phenomenon..........

2024 Winter

5

Theory

CH25 - QUANTUM PHYSICS

Electrons in a vacuum are accelerated from rest through a potential difference (p.d.) $V$ to form a beam. The electrons each have mass $m$ and charge ...

2024 Winter

6

Theory

CH25 - QUANTUM PHYSICS

A polished sheet of magnesium in a vacuum emits electrons when it is illuminated by ultraviolet radiation.(a) State the name of this phenomenon..........

2024 Winter

4

Theory

CH25 - QUANTUM PHYSICS

(a) State what is meant by a photon......................................................................................................................

2024 Summer

7

Theory

CH25 - QUANTUM PHYSICS

Fig. 8.1 shows part of the emission spectrum of visible radiation emitted by hydrogen gas in a star in a distant galaxy.The galaxy is moving away from...

2024 Summer

5

Theory

CH25 - QUANTUM PHYSICS

(a) State what is meant by a photon......................................................................................................................

2024 Summer

6

MCQ

CH25 - QUANTUM PHYSICS

Which particle is not a fundamental particle?

2024 Summer

6

MCQ

CH25 - QUANTUM PHYSICS

What is the charge of an anti-top quark?

2024 Summer

3

MCQ

CH25 - QUANTUM PHYSICS

A proton has mass $m_p$ and charge $+e$.What are the mass and charge of an antiproton?[Table_1]

2023 Summer

4

MCQ

CH25 - QUANTUM PHYSICS

A $\pi^+$ meson has a charge of $+e$, where $e$ is the elementary charge. It consists of an up quark and one other quark.What could be the other quark...

2023 Summer

6

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which quantity can be measured in electronvolts (eV)?

2014 Summer

2

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The unit of specific heat capacity is $\text{J kg}^{-1} \text{K}^{-1}$.What is its equivalent in terms of SI base units?

2014 Summer

2

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is the vertical component of this displacement vector?

2014 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

The resistance of a lamp is calculated from the value of the potential difference (p.d.) across it and the value of the current passing through it.Whi...

2014 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

The display on a cathode-ray oscilloscope shows the signal produced by an electronic circuit. The time-base is set at 5.0 ns per division and the Y-ga...

2014 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

A digital caliper is used to measure the 28.50 mm width of a plastic ruler. The digital caliper reads to the nearest 0.01 mm. What is the correct way...

2014 Summer

2

MCQ

CH3 - KINEMATICS

An experiment is performed to measure the acceleration of free fall $g$. A body falls between two fixed points. The four measurements shown below are ...

2014 Summer

2

MCQ

CH3 - KINEMATICS

In a cathode-ray tube, an electron is accelerated uniformly in a straight line from a speed of $4 \times 10^{3} \: \text{ms}^{-1}$ to $2 \times 10^{7}...

2014 Summer

2

MCQ

CH3 - KINEMATICS

The graph shows how the speed $v$ of a sprinter changes with time $t$ during a 100 m race. What is the best estimate of the maximum acceleration of...

2014 Summer

2

MCQ

CH4 - DYNAMICS

A tennis ball is dropped onto a table and bounces back up. The table exerts a force F on the ball. Which graph best shows the variation with time t o...

2014 Summer

2