IGCSE Cambridge Secondary Grade 10 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
Which technique is used by bats to judge how far an object is?

(A) Ultrasonic echo technique	(B) X- ray technique
(C) Infrasonic echo technique	(D) Ultraviolet radiation technique

Question-2
The phenomenon in which electrons are ejected from metal surfaces when electromagnetic waves fall on them is called

(A) Photoelectric effect	(B) Magnetism
(C) Spectrum	(D) Interference

Question-3
A bigger crest is formed at the point where two smaller crests from two different sources meet simultaneously is called

(A) Waves in phase	(B) Waves out of phase
(C) Interference	(D) Polarisation

Question-4
The spreading of wave at the edges or obstacle is called

(A) Reflection	(B) Refraction
(C) Diffraction	(D) Interference

Question-5
Light of one colour and so of one wavelength is called

(A) Infrared radiation	(B) Ultraviolet radiation
(C) Monochromatic light	(D) X-rays

Question-6
The distance between two successive crest or trough is called

(A) Displacement	(B) Wavelength
(C) Frequency	(D) Amplitude

Question-7
Which waves can be used for cooking?

(A) Infrared waves	(B) Microwaves
(C) Radio waves	(D) Light waves

Question-8
Sound waves with frequencies above 20 kH_z are called

(A) Infrasonic waves	(B) Ultrasonic waves
(C) Radio waves	(D) Microwaves

Question-9
All types of electromagnetic radiations travel through vacuum at

(A) 3 × 10⁸ m/s	(B) 3 × 10⁸ km/s
(C) 3 × 10^-8 m/s	(D) 3 × 10^-8 km/s

Question-10
Waves travel more slowly in

(A) Ocean	(B) River water
(C) Shallow water	(D) Deep water

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Cambridge Secondary Grade 10

IGCSE

Practice in Related Chapters
Light and Sight
Waves and Sounds
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Force and Resources
Motion and Energy
Heat and Energy
Electricity
Electromagnetic Effects
Electrons and Atoms