PYQSide ExamsMy practice

Electromagnetic Waves · Question 42

AIPMT 2003MCQEasy📈 Topic in 25% papers+4−1
1

Which of the following rays are not electromagnetic waves?

  1. X-rays
  2. -rays
  3. -rays
  4. heat rays

Answer

(3) -rays

Solution

X-rays, -rays and heat (infrared) rays are parts of the electromagnetic spectrum; they travel with speed c and carry no charge.

-rays are streams of fast-moving electrons (or positrons) emitted from nuclei, i.e. material particles carrying charge; they are deflected by electric and magnetic fields.

∴ -rays are not electromagnetic waves.

Answer: (3)

AIPMT 2003

Keep practising — Electromagnetic Waves

2

The velocity of electromagnetic wave is parallel to

  1. B E
  2. E B
  3. E
  4. B
AIPMT 2002
3

What is the cause of greenhouse effect?

  1. infra-red rays
  2. ultra violet rays
  3. X-rays
  4. radio waves.
AIPMT 2002
4

Biological importance of ozone layer is

  1. it stops ultraviolet rays
  2. ozone layer reduces greenhouse effect
  3. ozone layer reflects radio waves
  4. ozone layer controls O2/H2 ratio in atmosphere
AIPMT 2001
5

The frequency order for -rays (a), X-rays (b), UV rays (c) is

  1. b > a > c
  2. a > b > c
  3. c > b > a
  4. a > c > b
AIPMT 2000

All Electromagnetic Waves PYQs →

PDFDownload Electromagnetic Waves PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All NEET Physics chapters
Class 11Units and MeasurementsMotion in a Straight LineMotion in a PlaneLaws of MotionWork, Energy and PowerSystem of Particles and Rotational MotionGravitationMechanical Properties of SolidsMechanical Properties of FluidsThermal Properties of MatterThermodynamics (Physics)Kinetic TheoryOscillationsWaves
Class 12Electric Charges and FieldsElectrostatic Potential and CapacitanceCurrent ElectricityMoving Charges and MagnetismMagnetism and MatterElectromagnetic InductionAlternating CurrentElectromagnetic WavesRay Optics and Optical InstrumentsWave OpticsDual Nature of Radiation and MatterAtomsNucleiSemiconductor ElectronicsExperimental Skills (Physics)