WBJEE-JENPAS-UG SERIES Physical-sciences
Statements And Assumptions
4 previous year questions.
Volume: 4 Ques
Yield: Medium
High-Yield Trend
4
2023 Chapter Questions 4 MCQs
01
PYQ 2023
medium
physical-sciences ID: wbjee-je
Which of the followings are derived physical quantities ?
1
Density
2
Electric charge
3
Electric current
4
Heat
02
PYQ 2023
medium
physical-sciences ID: wbjee-je
Which of the following statement/s is/are correct at NTP?
1
1 gm of any gas occupies 22.4 lit.
2
The no. of ions present in 1 gm-ion of a substance is 6.023×1023.
3
The no. of atoms present in 1 gm-atom of a substance is 6.023×1023.
4
22.4 lit of any gaseous substance contains 6.023×1023 molecules.
03
PYQ 2023
medium
physical-sciences ID: wbjee-je
Which of the following is/are correct for any gas?
1
Vapour density = 2 × molecular weight
2
Molecular weight = 2 × vapour density
3
At STP, the normal density = 0.089 × vapour density
4
At STP, vapour density = 0.089 × normal density
04
PYQ 2023
medium
physical-sciences ID: wbjee-je
Which of the following statement(s) is/are correct when α, β, γ are the coefficients of linear expansion, surface expansion and volume expansion respectively of a solid ?
1
2
3
4
does not depends on the length, surface area and volume of the object.