Theory

CH16 - COMMUNICATION

(a) Fig. 13.1 is a block diagram illustrating part of a mobile phone handset used for receiving a signal from a base station.Complete Fig. 13.1 by lab...

2009 Summer

Theory

CH16 - COMMUNICATION

(a) State and explain two advantages of the transmission of information in digital, rather than analogue, form. 1. .....................................

2009 Winter

Theory

CH16 - COMMUNICATION

(a) State the name of this type of modulated transmission................................................................................................

2009 Winter

Theory

CH16 - COMMUNICATION

A block diagram representing part of a mobile phone network is shown in Fig. 12.1. (a) State what is represented by(i) the blocks labelled X, ...........

2009 Winter

Theory

CH16 - COMMUNICATION

Many radio stations now broadcast on FM rather than on AM. In general, FM is broadcast at much higher frequencies than AM.(a) Explain what is meant by...

2010 Summer

Theory

CH16 - COMMUNICATION

A ground station on Earth transmits a signal of frequency 14 GHz and power 18 kW towards a communications satellite orbiting the Earth, as illustrated...

2010 Summer

Theory

CH16 - COMMUNICATION

A telephone link between two towns is to be provided using an optic fibre. The length of the optic fibre between the two towns is 75 km.(a) State two ...

2010 Summer

Theory

CH16 - COMMUNICATION

A telephone link between two towns is to be provided using an optic fibre. The length of the optic fibre between the two towns is 75 km.(a) State two ...

2010 Summer

Theory

CH16 - COMMUNICATION

(a) Wire pairs provide one means of communication but they are subject to high levels of noise and attenuation. Explain what is meant by(i) \textit{no...

2010 Winter

Theory

CH16 - COMMUNICATION

(a) Outline the principles of the use of a geostationary satellite for communication on Earth............................................................

2010 Winter

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which pair of quantities contains one vector and one scalar quantity?

2013 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

One property Q of a material is used to describe the behaviour of sound waves in the material. Q is defined as the pressure P of the sound wave divide...

2013 Summer

MCQ

CH3 - KINEMATICS

A cannon fires a cannonball with an initial speed $v$ at an angle $\alpha$ to the horizontal. Which equation is correct for the maximum height $H$ re...

2013 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

A wave has a frequency of 5 GHz. What is the period of the wave?

2013 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

In an experiment to determine the acceleration of free fall $g$, the period of oscillation $T$ and length $l$ of a simple pendulum were measured. The ...

2013 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The Y-input terminals of a cathode-ray oscilloscope (c.r.o.) are connected to a supply of amplitude 5.0 V and frequency 50 Hz. The time-base is set at...

2013 Summer

MCQ

CH3 - KINEMATICS

A body is released from rest and falls vertically in air of constant density. Which statement about the motion of the falling body is correct?

2013 Summer

MCQ

CH3 - KINEMATICS

A goods train passes through a station at a steady speed of 10 m s$^{-1}$. An express train is at rest at the station. The express train leaves the st...

2013 Summer

MCQ

CH3 - KINEMATICS

A car is stationary at traffic lights. When the traffic lights go green, the driver presses down sharply on the accelerator. The resultant horizontal ...

2013 Summer

MCQ

CH4 - DYNAMICS

Which of the following is a statement of the principle of conservation of momentum?

2013 Summer