1. one β-particle
2. one α-particle
3. two αand two β-particles
4. one αand two β-particles
one αand two β-particles
1. 600 g
2. 1000 g
3. 1250 g
4. 2000 g
2000 g
1. isobars
2. isotopes
3. isomers
4. isotones
isobars
1. 3.125 gn
2. 2.084 g
3. 1.042 g
4. 4.167 g
3.125 gn
1. zero order
2. first order
3. second order
4. order more than three
first order
1. 30 hours
2. 45 hours
3. 60 hours
4. 120 hours
60 hours
1. Carbon- 14 fraction is the same in all objects
2. Carbon- 14 is highly insoluble
3. Ratio of carbon- 14 and carbon- 12 are constant
4. all the above
Ratio of carbon- 14 and carbon- 12 are constant
1. be increased
2. be increased
3. change only slightly
4. remain unchanged
remain unchanged
1. 2500 dis/min
2. 5000 dis/min
3. 20,000 dis/min
4. 1250 dis/min
1250 dis/min
1. 10%
2. 12.50%
3. 15%
4. 17.5%.
12.50\%