TS Inter 1st Year Physics Guess Paper 2025: Important Questions and Exam Pattern

The Telangana State Board of Intermediate Education (TSBIE) will conduct the TS Inter 1st Year Physics Exam 2025 on March 17, 2025. As students prepare for this crucial exam, referring to a well-structured TS Inter 1st Year Physics Guess Paper 2025 can help enhance their preparation. This guess paper is formulated based on an in-depth analysis of previous years’ papers to provide students with a strategic advantage.

TS Inter 1st Year Physics Exam Pattern 2025

The Physics theory exam will be marked out of 60 marks and will be divided into three sections: Section A, Section B, and Section C. Each section carries a different weightage and requires different levels of explanation in answers. By practicing with this guess paper, students can familiarize themselves with the exam structure, topic weightage, and sectional mark distribution.

TS Inter 1st Year Physics Section-Wise Guess Paper 2025

The following section-wise guess paper covers important questions likely to appear in the TS Inter 1st Year Physics Exam 2025.

Section A: Very Short Answer Type Questions (2 Marks Each)

Each question in this section requires concise and precise answers. Here are some important questions:

What is inertia? What gives the measure of inertia?
Answer: Inertia is the property of a body to resist changes in its state of motion. Mass gives the measure of inertia.
Why do liquids have no linear and areal expansion?
Answer: Liquids have no definite shape; they take the shape of their container, so they expand in all directions uniformly, resulting in only volumetric expansion.
State Dalton’s Law of partial pressure.
Answer: Dalton’s Law states that the total pressure exerted by a mixture of non-reacting gases is equal to the sum of the partial pressures of individual gases.
Define the term ‘work’ and state its SI unit.
Answer: Work is said to be done when a force is applied to an object, and it moves in the direction of the applied force. Its SI unit is the Joule (J).
Explain the principle of conservation of momentum.
Answer: The principle states that in the absence of an external force, the total momentum of an isolated system remains constant.

Section B: Short Answer Type Questions (4 Marks Each)

This section requires detailed yet to-the-point answers. Key questions include:

Explain the terms limiting friction, dynamic friction, and rolling friction.
Answer: Limiting friction is the maximum static friction before motion starts. Dynamic friction occurs when an object is already moving. Rolling friction is the resistance force experienced by a rolling object.
What is escape velocity? Derive an expression for it.
Answer: Escape velocity is the minimum velocity needed for an object to escape Earth’s gravitational field. It is given by: ve=2gRv_e = \sqrt{2 g R} where gg is gravitational acceleration and RR is the Earth’s radius.
Explain conduction, convection, and radiation with suitable examples.
Answer: Conduction is heat transfer through direct contact (e.g., heating a pan). Convection is heat transfer through fluid movement (e.g., boiling water). Radiation is heat transfer through electromagnetic waves (e.g., sunlight).
Show that the trajectory of an object thrown at a certain angle with the horizontal is a parabola.
Answer: Using the equations of motion, the equation of projectile motion is derived as:
y=xtan⁡θ−gx22u2cos⁡2θy = x \tan\theta – \frac{g x^2}{2 u^2 \cos^2\theta} This represents a parabolic path.
Define torque and derive its relation with angular momentum.
Answer: Torque is the rotational equivalent of force, given by τ=r×F\tau = r \times F. It relates to angular momentum as τ=dLdt\tau = \frac{dL}{dt}, where LL is angular momentum.

Section C: Long Answer Type Questions (8 Marks Each)

Students must provide in-depth explanations and derivations in this section. Important questions include:

State and prove the law of conservation of energy in the case of a freely falling body.
Answer: The total mechanical energy (kinetic + potential) remains constant during free fall. At height hh, potential energy is mghmgh, and kinetic energy is zero. As it falls, PE converts to KE. At the ground, KE is maximum and PE is zero, proving conservation of energy.
Find the useful power used in pumping 3425m³ of water per hour from a well 8 m deep to the surface, assuming 40% of the horsepower during pumping is wasted. What is the horsepower of the engine?
Answer: P=mghtP = \frac{mgh}{t} Given volume = 3425 m³, depth = 8m, and assuming 1000 kg/m³ density of water, mass = 3425000 kg. Using g=9.8g = 9.8 m/s², we can calculate power and then adjust for efficiency.
Derive the equations of motion using the calculus method.
Answer: By integrating acceleration a=dvdta = \frac{dv}{dt} and velocity v=dxdtv = \frac{dx}{dt}, the three equations of motion are obtained: v=u+atv = u + at s=ut+12at2s = ut + \frac{1}{2}at^2 v2=u2+2asv^2 = u^2 + 2as
Explain the laws of thermodynamics with real-life applications.
Answer:
- First Law: Energy cannot be created or destroyed (e.g., heat engines).
- Second Law: Heat flows from hot to cold (e.g., refrigerators).
- Third Law: Entropy of a perfect crystal is zero at absolute zero temperature.
Derive the expression for kinetic energy and explain its significance.
Answer: Using W=F⋅dW = F \cdot d, the work-energy theorem leads to: KE=12mv2KE = \frac{1}{2} mv^2 This shows that kinetic energy depends on mass and the square of velocity.

Final Preparation Tips for TS Inter 1st Year Physics Exam 2025

Focus on important formulas, derivations, and conceptual clarity.
Solve model papers and sample tests to assess your preparation level.
Revise frequently asked theoretical questions and numerical problems.
Ensure a good balance between theory and practical application.

Conclusion

With the TS Inter 1st Year Physics Guess Paper 2025, students can plan their studies more effectively and enhance their performance in the upcoming exam. By following a structured approach and focusing on key areas, students can maximize their scoring potential and confidence for the March 17, 2025, examination.

Stay consistent with your practice, and best of luck with your TS Inter 1st Year Physics Exam 2025!

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