Related Questions

The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called
A effective rainfall
B consumptive use
C consumptive irrigation requirement
D net irrigation requirement
একটি ধাতব তলে λ তরঙ্গদৈর্ঘ্যের একবর্ণী আলোকরশ্মি আপতিত হলে ফটো-ইলেক্ট্রন নির্গত হয় এবং এক্ষেত্রে বিভবের মান 3Vo একই তলে যখন 2λতরঙ্গদৈর্ঘ্যের একবর্ণী আলো আপতিত হয়, তখন নিবৃত্তি বিভবের মান Vol ফটো-ইলেক্ট্রন নির্গত হওয়ার জন্য ঐ তলটির সূচন তরঙ্গদৈর্ঘ্যের মান নির্ণয় কর।(A monochromatic light of wavelength λ is incident on a metallic surface then ejects photo-electron and the value of stopping potential is 3Vo. When the same surface is illuminated by a light of wavelength 2λ., the stopping potential becomes Vo. Calculate the threshold wavelength for this surface to eject photo electrons.)
A 6λ
B 8λ
C 4λ3
D λ
E 4λ
Which is the most suitable joint for the pipes, with are laid submerged under water, where the bottom of the river bed is uneven?
A Collar joint
B Flexible joint
C Flanged joint
D Expansion joint
In case of __________ boiling, the bubbles formed on a submerged hot surface get absorbed in the mass of the liquid.
A Nucleate
B Pool
C Low pressure
D None of these
প্রস্বেদন (Transpiration) প্রক্রিয়ায় উদ্ভিদের বায়বীয় অঙ্গ হিসেবে সাধারনত কোনটিকে বিবেচনা করা হয়?
A অক্সিজেন
B কার্বন ডাই অক্সাইড
C পাতা
D মূলরোম
The word `transpiration' mean-
A Loss of water vapour from parts of plants
B Loss of water vapour from soil
C Loss of water from soil surface
D None of the above
In how many different ways can the letters of the word ‘TRANSPIRATION’ be arranged so that the vowels always come together?
A 2429500
B 1360800
C 1627800
D None of these
The device to measure transpiration in plants is
A Hygrometer
B Crescometer
C Potometer
D Clinometer
Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an
A Blast furnace
B Steam boiler
C Salt bath furnace
D Annealing furnace
When workers do not find their assignments challenging, they become bored and, therefore, achieve less then their potential. On the other hand, when works find their assignments too difficult, they give up and so again achieve less than what they are capable of achieving. It is, therefore, clear that no worker’s full potential will even be realized. Which one of the following is an error of reasoning contained in the argument?
A Mistakenly equating what is actual and what is actual and what is merely possible.
B Assuming without warrant that a situation allows only two possibilities.
C Relying on subjective rather than objective evidence.
D Confusing the coincidence of two events with a causal relation between the two.

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