Theory

Waves

(a) Explain the main principles behind the use of ultrasound to obtain diagnostic information about internal body structures.   [4] (b) Dat...

2009 Summer

5

MCQ

Waves

The order of magnitude of the frequency of the longest-wavelength ultraviolet waves can be expressed as $10^x$ Hz. What is the value of $x$?

2009 Winter

2

MCQ

Waves

The light from two lasers passes through a vacuum. One laser emits red light and the other emits green light. Which property of the two laser beams m...

2009 Winter

2

MCQ

Waves

Electromagnetic waves from an unknown source in space were found to be significantly diffracted when passing through gaps of the order of $10^{-5}\, \...

2010 Summer

1

MCQ

Waves

Electromagnetic waves from an unknown source in space were found to be significantly diffracted when passing through gaps of the order of $10^{-5} \te...

2010 Summer

3

Theory

Waves

(a) A source of sound has frequency $f$. Sound of wavelength $\lambda$ is produced by the source. (i) State what is meant by the frequency of the so...

2010 Summer

1

Theory

Waves

Explain the main principles behind the generation of ultrasound to obtain diagnostic information about internal body structures.

2010 Summer

Theory

Waves

Explain the main principles behind the $\textbf{generation}$ of ultrasound to obtain diagnostic information about internal body structures.

2010 Summer

3

MCQ

Waves

The graph shows how the displacement of a particle in a wave varies with time. Which statement is correct?

2010 Winter

4

MCQ

Waves

The amplitude of a wave is $A$ and its intensity is $I$. Which amplitude is necessary for the intensity to be doubled to $2I$?

2010 Winter

4

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a reasonable estimate of the mass of a raindrop?

2020 Summer

4

MCQ

CH2 - MEASUREMENT TECHNIQUES

Which quantity is a scalar?

2020 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

A galvanometer of resistance 5\(\Omega\) is to be used in a null method.In order to protect the galvanometer from damage due to an excessive initial c...

2020 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

Readings are made of the current $I$ for different voltages $V$ across a fixed resistor. The results are plotted on a graph to show the variation of $...

2020 Summer

4

MCQ

CH3 - KINEMATICS

A stone is dropped from a height of 20 m above water. The graph shows the variation with time of the velocity of the stone. Which statement describ...

2020 Summer

7

MCQ

CH3 - KINEMATICS

A car X is travelling at a constant speed $u$ along a straight road. At time $t = 0$ a second car Y is a distance $d_0$ behind car X and travelling at...

2020 Summer

4

MCQ

CH4 - DYNAMICS

The resultant force acting on an object is slowly increased. Which graph could show the variation with time $t$ of the momentum $p$ of the object?&nb...

2020 Summer

2

MCQ

CH4 - DYNAMICS

An astronaut has a weight of 660 N when she is standing on the Earth's surface. The acceleration of free fall on the surface of Mars is $3.71 \, \tex...

2020 Summer

3

MCQ

CH4 - DYNAMICS

A mass $m_1$ travelling with speed $u_1$ collides with a mass $m_2$ travelling with speed $u_2$ in the same direction. After the collision, mass $m_1$...

2020 Summer

4

MCQ

CH4 - DYNAMICS

The diagrams show a negative electric charge situated in a uniform electric field and a mass situated in a uniform gravitational field. Which row s...

2020 Summer

3