Q1. Classical and Modern Trade Theories 

Introduction - International trade theories explain why countries engage in trade and how they derive benefits from it. Over time, these theories have evolved from basic cost-based explanations to more complex models incorporating technology, scale, and competition. These are broadly classified into classical trade theories and modern trade theories.

Classical Trade Theories:-

1. Mercantilism - Mercantilism is one of the earliest theories of international

Compton Effect, Compton Shift, and Modified & Unmodified Radiation

Compton Effect -The Compton Effect is a phenomenon in which X-rays or gamma rays scatter off electrons, resulting in a change in wavelength. When a high-energy photon collides with an electron, it transfers part of its energy to the electron. The electron recoils and the photon emerges with reduced energy and increased wavelength. Compton Shift

The Compton Shift is the difference between the initial and final wavelength of the

Αγαπητοί συμμαθητές, αξιότιμε καθηγητή, 

Με αφορμή το άρθρο που επεξεργαστήκαμε στο πλαίσιο του μαθήματός μας, μου δίνεται η ευκαιρία να μοιραστώ μαζί σας ορισμένους προβληματισμούς σχετικά με τους παραδοσιακούς ρόλους των δύο φύλων εντός της οικογένειας, καθώς και τον βαθμό

📘 STRING BUILT-IN FUNCTIONS (WITH DEFINITIONS)

🔹 1. Case Conversion Functions

upper()

👉 Definition:
Ye function string ke saare characters ko uppercase (capital letters) me convert karta hai. Original string change nahi hoti, ek new string return hoti hai.

👉 Example:

lower()

👉 Definition:
Ye function string ke saare characters ko lowercase me convert karta hai.

title()

👉 Definition:

Inertial frame of reference – A frame at rest or moving with constant velocity where Newton’s First Law of Motion holds true and no extra forces are needed. •
Non-inertial frame of reference – A frame that is accelerating or rotating where Newton’s laws need fictitious (pseudo) forces to explain motion.
Wien’s displacement law – It states that the wavelength at which a body emits maximum radiation is inversely proportional to its temperature. λmax ∝ T and λ maxT = Constant. 
Stefan’s

Inertial frame of reference – A frame at rest or moving with constant velocity where Newton’s First Law of Motion holds true and no extra forces are needed.
Non-inertial frame of reference – A frame that is accelerating or rotating where Newton’s laws need fictitious (pseudo) forces to explain motion.

Wien’s displacement law – It states that the wavelength at which a body emits maximum radiation is inversely proportional to its temperature.  λmax ∝ T and  λ maxT = Constant. 

Stefan’s