Question
Thin gold foil metal is enclosed with which screen?
- Fluorescent FeS
- Phosphorescent FeS
- Fluorescent ZnS
- Phosphorescent ZnS
The correct answer is: Fluorescent ZnS
A beam of a- particles taken from a highly radioactive source is passed through the thin gold foil of metal enclosed with a fluorescent ZnS screen around it.
Related Questions to study
According to the Rutherford model of atom, a beam of α-particle is passed through:
According to the Rutherford model of atom, a beam of α-particle is passed through:
Which one of the subatomic particles was not explained by Rutherford?
Which one of the subatomic particles was not explained by Rutherford?
__________ has the positive charge
__________ has the positive charge
Rutherford model of atom is also known as:
Rutherford model of atom is also known as:
Rutherford proposed atomic model based on_________ experiment
Rutherford proposed atomic model based on_________ experiment
In which year did Rutherford won the noble prize?
In which year did Rutherford won the noble prize?
Who explained about the charged particles of the atom?
Who explained about the charged particles of the atom?
Which of the following is the best example of the law of conservation of mass?
Law of conservation of mass was given by Antoine Lavoisier.
Which of the following is the best example of the law of conservation of mass?
Law of conservation of mass was given by Antoine Lavoisier.
“Atom as an indestructible entity” was proposed by?
Dalton's atomic theory does not account the presence of isotopes.
“Atom as an indestructible entity” was proposed by?
Dalton's atomic theory does not account the presence of isotopes.
If you heat 25 g of reactant ‘A’ with 50 g of reactant ‘B’. You obtain 50 g of product ‘C’ and recover 20 g of unreacted ‘B’. Which of the following law is true for the above condition?
Law of definite proportion and Proust's law are the other names of law of constant proportion.
If you heat 25 g of reactant ‘A’ with 50 g of reactant ‘B’. You obtain 50 g of product ‘C’ and recover 20 g of unreacted ‘B’. Which of the following law is true for the above condition?
Law of definite proportion and Proust's law are the other names of law of constant proportion.
When 16 g of O2 combine with 2 g of H2. H2 also combines with carbon to form methane in which 2 g of H2 combine with 6 g of C. If C and O2 combine, then what ratio it will be showing?
When 16 g of O2 combine with 2 g of H2. H2 also combines with carbon to form methane in which 2 g of H2 combine with 6 g of C. If C and O2 combine, then what ratio it will be showing?
The percentage of Fe and O2 in samples of Fe2O3 obtained by different methods were found to be the same.” This statement is proved by which of the following laws?
The Law of constant proportion is also known as the Law of definite proportion or Proust's law.
The percentage of Fe and O2 in samples of Fe2O3 obtained by different methods were found to be the same.” This statement is proved by which of the following laws?
The Law of constant proportion is also known as the Law of definite proportion or Proust's law.
Which of the following statements are true?
Other statements mentioned here are false. The only correct statement is the one of the law of conservation of mass.
Which of the following statements are true?
Other statements mentioned here are false. The only correct statement is the one of the law of conservation of mass.
Which of the following laws are used for balancing the chemical reaction:
The law of conservation of mass is an important property that shows the balancing of chemical reactions.
Which of the following laws are used for balancing the chemical reaction:
The law of conservation of mass is an important property that shows the balancing of chemical reactions.
