Related Questions

The green light only ever goes on when tank A is full and tank C isn't empty. The red light is always on unless either tank A isn't Full or tank B is empty. Given that the green light is on, we can conclude all of the following EXCEPT---
A Tank A cannot be empty
B The red light must be on
C Tank C cannot be empty
D we don't have enough information to determine whether tank B is empty or not
What is the phenomenon which established the transverse nature of light ?
A Reflection
B Interference
C Diffraction
D Polarisation
আলোর আড় তরঙ্গ প্রকৃতি নিম্নলিখিত কোন ঘটনা দ্বারা পরীক্ষা করা হয়? (Transverse wave nature of light is examined by which of the following phenomena?)
A বিচ্ছুরণ (Dispersion)
B অপবর্তন (Diffraction)
C সমবর্তন (Polarization)
D বিক্ষেপণ (Scattering)
"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
When a wave strikes a vertical breakwater in deep water, it is reflected back and on meeting another advancing wave of similar amplitude merges and rises vertically in a wall of water. This phenomenon is called
A Surf
B Clapotis
C Fetch
D Swell
Which of the following is not a transverse wave?
A Light waves
B Radio waves
C Sound waves
D All the above
What is the distance between a crest and a consecutive trough in a transverse wave?
A Wavelength
B Amplitude
C Half of the wavelength
D Twice of wavelength
If ‘Hs’ is the significant wave height, then the average wave height and highest wave height respectively are given by
A 0.6 Hs and 1.67 Hs
B 0.6 Hs and 1.87 Hs
C 1.27 Hs and 1.87 Hs
D 1.27 Hs and 1.67 Hs
A concept is a word or a phrase which symbolizes the phenomenon and helps to communicate the finding. Which fact about the concept is wrong?
A It is similar to an the same thing as a fact
B It is abstracted from the sense perceptions
C They are logical constructs created from the sense impressions or complex experiences
D It should not be confusing
some zings are zangs. Some zangs are zongs. Which of the following can we conclude for sure?
A Some zings are zongs
B No zongs are zings
C Some zangs are zings
D All zings are zongs

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