Question : What are the characteristics of isotopes?

Option 1: Same neutron and same proton

Option 2: Same atomic number and different mass number

Option 3: Same atomic number and same mass number

Option 4: Same neutron and different proton

Question : Name the particle that is most essential to continue the chain reaction during the fission of uranium

Option 1: Electron

Option 2: Proton

Option 3: Neutron

Option 4: Positron

Question : A and B started a business with Rs. 15000 and Rs. 30000, respectively. If A and B share profit in the ratio of 1 : 5 respectively, then what is the ratio of the time period of investment for A and B respectively?

Option 1: 1 : 2

Option 2: 2 : 5

Option 3: 2 : 3

Option 4: 2 : 7

Question : The ratio of the speed of Aman, Kamal, and Manan is 2 : 3 : 4 respectively. What is the ratio of the time taken by Aman, Kamal, and Manan respectively to cover the same distance?

Option 1: 4 : 3 : 2

Option 2: 2 : 3 : 4

Option 3: 6 : 4 : 3

Option 4: 8 : 9 : 16

Question : The lengths, the breadths, and the volumes of two cuboids are in the ratios of 4 : 5, 3 : 4, and 2 : 3, respectively. What is the ratio of their heights?

Option 1: 3 : 5

Option 2: 10 : 9

Option 3: 8 : 15

Option 4: 2 : 3