BPSC Prelims

2024

General

Bihar Special 14

All Questions 14 Agriculture 5 Culture 1 Economy 1 Education 1 Geography 2 History 2 Polity 2

Current Affairs 13

All Questions 13 Awards 2 Culture 1 Environment 1 International 4 Reports 1 Sports 3 Summits 1

Economy 12

All Questions 12 Agriculture 2 Banking 2 Corporate 1 Demography 2 Fiscal Policy 1 Globalization 1 National Income 1 Planning 1 Taxation 1

Environment 1

All Questions 1 Energy 1

General Awareness 2

All Questions 2 Personalities 1 Sports 1

General Science 27

All Questions 27 Biology 11 Chemistry 8 Physics 8

Geography 18

All Questions 18 Culture 1 India 5 Industry 1 Physical 3 Rivers 2 World 6

History 35

All Questions 35 Ancient 6 Bihar Special 1 Medieval 3 Modern 24 World History 1

Mental Ability 9

All Questions 9 Analogy 1 Blood Relations 1 Calendar 1 Clocks 1 Direction 1 Geometry 1 Ranking 1 Series 1 Venn Diagram 1

Polity 13

All Questions 13 Amendment 2 Constitution 1 Constitutional Bodies 1 Emergency 1 Federalism 1 Fundamental Rights 1 Judiciary 1 Panchayati Raj 1 Parliament 2 President 1 Schedules 1

Science & Tech 6

All Questions 6 Chemistry 1 Digital 1 Energy 1 Robotics 1 Space 2

General Science

Physics

EN हिंदी

✕

BPSC Prelims 2024 General 📅 04 Jan, 2025

Which of the following is responsible for production of shadow ?

A

Diffraction

B

Interference

C

Rectilinear propagation of light

D

Polarisation

Result Summary

APEDIA

BPSC Prelims

2024 • 04 Jan, 2025 • General

Which of the following is responsible for production of shadow ?

Correct Answer

Rectilinear propagation of light

• **Principle:** Rectilinear Propagation. • **Explanation:** Light travels in straight lines. When an opaque object blocks this path, light cannot bend aro......

💡 Analysis & Explanation

• **Principle ▼

** Rectilinear Propagation.

• **Explanation ▼

** Light travels in straight lines. When an opaque object blocks this path, light cannot bend around it (significantly on macro scale), creating a dark region (shadow) behind.