Fill in the blanks :
(i)A certain amount of _____ is needed to initiate any _____ reaction.
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The `K_beta` X-ray of argon has a wavelength of 0.36 nm. The minimum energy needed to ionize an argon atom is 16 eV. Find the energy needed to knock o
Correct Answer - `3.47 keV`
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A galvanometer has a resistance of `30Omega` and a current of 2 mA is needed to give full scale deflection. What is the resistance needed and how is i
Correct Answer - (i) `(30)/(149)Omega` in parallel, (ii) `70Omega` in series
2 Answers 1 views
The rough surface of a horizontal table offers a definite maximum opposing force to initiate the motion of a block along with the table,
(A) Component of F2 adds up to weight to increase the normal reaction.
2 Answers 2 views
Fill in the blanks with the suitable words____filaments are thinner as compared to the _____ filaments, hence are commonly called ______ and filaments
Correct Answer - Actin, myosin, thin, thick
2 Answers 1 views
Name the hormone which is used extensively in agricultural and horticultural practices and help to initiate rooting in stem curring during plant propa
Correct Answer - Auxin.
2 Answers 1 views
Naresh invested a certain amount of money in Rs. 100 shares at a discount of Rs. 20 paying a dividend of 7%, while Sahil invested an equal amount in R
Correct Answer - Sahil
2 Answers 1 views
Pipe A in fill a tank in 15 horurs Pipe A and Pipe B together can fill it in 10 hours Pipe B can fill 8 liters per minute. Find the capicity of the ta
Correct Answer - 14400 litres
2 Answers 1 views
Fill in the blanks : (iv)The enzymes which work only in the presence of cofactors are called ___ and a working combination of the two is called _____
Correct Answer - apoenzymes, haloenzyme
2 Answers 1 views
Fill in the blanks : (v)Certain chemicals also limit or prevent the function of an enzyme . There are called _______
Correct Answer - Inhibitors.
2 Answers 3 views
Which of the following equation is used to determine howmuch heat is needed to raise the temperature of a certain
C) Q = mS Δt
2 Answers 1 views