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Given that, 24 carat gold is pure gold, 18 carat gold is 3/4th of pure gold and 20 carat gold is 5/6th of pure gold, the ratio of the pure gold in 18 carat gold to the pure gold in 20 carat gold is -
For the same long diagonal length of indenter of Vickers hardness and Knoop hardness, the Knoop hardness is how much percentage of the Vickers indenter?
Which of the following tests are microhardness tests? P. Brinell Hardness Q. Rockwell Hardness R. Knoop Hardness S. Vickers Hardness
If the gold foil is replaced by any other metal foil whose atomic number is larger than the atomic number of the gold and rest all properties are same as that of gold then the distance of closest approach in Rutherford’s alpha scattering will be -
A foil is to be put as shield over a cake (circular) in a shape such that the heat is even along any diameter of the cake. Given that the heat on cake is proportional to the height of foil over cake, the shape of the foil is given by
In Rutherford's gold foil experiment which of the following were directed towards the gold foil?
Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer :

Statements : The Bank of England's move to auction 25 metric tons of gold drew plenty of bidders looking for a bargain, but was criticised by major gold producers worldwide.

Conclusions :
I. The Bank of England should not auction gold which it possesses to keep steady international prices of gold.
II. Bidders should quote higher gold prices to retain present value of gold in the international markets.
For measuring the hardness of the cementite and ferrite in a pearlite colony individually, the Knoop hardness measurement is the best method.
Commercial gold (22 parts of 24 is gold) was bought by Raj at Rs. 3300/gram. But the dishonest seller sells a poor quality of gold (a part of 24). When Ramesh resells the gold after the gold price appreciates by 10%, he loses 10%. If the dealer can sell honestly and get 10% profit, what is the profit (%) the dealer earns dishonestly?
What is/are the purpose/purposes of Government's Sovereign Gold Bond Scheme' and 'Gold Monetization Scheme'? 1. To bring the idle gold lying with Indian households into the economy 2. To promote FDI in the gold and jewellery sector 3. To reduce India's dependence on gold imports Select the correct answer using the code given below