A. Directions of both the fields are orthogonal
B. Both the fields are at right angles to the direction of propagation
C. Both A. and B.
D. Neither A. nor B.
Related Mcqs:
- “An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media”. This phenomenon is known as___________________?
A. Fresnel reflection
B. Fresnel refraction
C. Snell’s law
D. None of these - Pick up the correct statement from the following?
A. The minimum frequency of light for which no electrons are emitted, is called threshold frequency
B. Polarising angle of glass is 57.5°
C. At the polarising angle, the reflected and refracted rays are orthogonal
D. All the above - Pick up the correct statement from the following?
A. Frequency is the number of wave crests passing a fixed point in one second
B. Frequency of a wave is measured in Hertz (Hz)
C. Amplitude of a wave is the height of its crust from the mid-point
D. All of these - Which one of the following statement is correct ?
A. Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation
B. The rate of transfer of radiant energy is called flux and is expressed in watts
C. The radiant energy which falls upon a surface is termed as irradiance
D. All of these - The reflection of solar energy is characterised by the water content in the leaf, in the reflective optical infrared______________?
A. Visible (0.4 –
B. Near-IR (0.7 –
C. Short wave-IR (1.3 –
D. None of these - Consider the following statements regarding the satellite imaging_________________?
1. The satellite orbit is fixed in the inertial space
2. During successive across-track imaging, the earth rotates beneath the sensor
3. The satellite images a skewed area
Which one of the following statements is/are correct?A. 1, 2, 3
B. 1, 3
C. 2, 3
D. 1, 2 - The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is_______________?
A. 8
B. 12
C. 16
D. 24 - In GPS, receivers used are___________________?
A. Electronic clocks
B. Atomic clocks
C. Quartz clocks
D. Mechanical clocks - Orbital radius of GPS satellites is approximately ___________________?
A. 15,200 km
B. 26,600 km
C. 18,400 km
D. 36,000 km - The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called____________________?
A. Passive remote sensing
B. Active remote sensing
C. Neutral remote sensing
D. None of these
