This section contained the single most "tricky" question in the entire paper—a double-slit interference pattern where one slit was covered by a thin film of refractive index n. The question asked: "What happens to the central bright fringe?"
Before diving into specific questions, it is crucial to understand the 2008 examination environment. The H2 Physics syllabus (e.g., 9646 for Singapore or 9702 for Cambridge International) was comprehensive but less cluttered than today's versions. Key topics that featured prominently included: 2008 h2 physics paper 1
When practicing this specific paper, time yourself strictly for . This forces you to develop the "triage" skill—skipping a difficult question to secure marks on easier ones later in the paper. This section contained the single most "tricky" question
This breakdown of the (9745/01) is designed to help you navigate its specific challenges. While this paper follows the standard A-Level format of 40 multiple-choice questions, it is remembered for its heavy emphasis on superposition and field theory . 1. The Landscape: Key Focus Areas While this paper follows the standard A-Level format
These questions often require a deep understanding of the relationship between potential ( ) and field strength (
The answer: No change. Stopping potential depends only on frequency (maximum kinetic energy), not intensity. This was a classic distractor for students who conflate "number of photoelectrons" with "energy per photoelectron."
cap delta cap U equals cap G cap M m open paren the fraction with numerator 1 and denominator r sub 1 end-fraction minus the fraction with numerator 1 and denominator r sub 2 end-fraction close paren Question 14: Calculated the mass of a star ( cap M sub s ) using the orbital period and radius with the formula , yielding approximately Thermodynamics (Q17-18): Question 17: Comparing Latent Heat of Vaporization ( cap L sub v ) and Fusion ( cap L sub f ) based on time-temperature graphs. In this paper, because the time taken for boiling ( t sub cap Q ) was greater than for melting ( t sub cap S Question 18: Analyzing the ideal gas law ( ). If moles ( ) and temperature ( ) both double, the gradient of a graph changes by a factor of 1/4. Resources for Further Study Worked Solutions: