Correct Answer: B. of the command structure of the military

Correct Answer: D. 20°

Explanation

Here's a step-by-step explanation:

1. Initial Setup:

* Let the incident ray be fixed.

* Let the initial normal to the mirror be N1.

* The angle of incidence is i1 = 35°.

* According to the law of reflection, the initial angle of reflection is r1 = 35°.

* The initial reflected ray is R1. The angle between N1 and R1 is r1.

2. Mirror Rotation:

* The mirror is rotated through an angle (let's call it θ_m) = 10°.

* When the mirror rotates, the normal to the mirror surface also rotates by the same angle θ_m in the same direction. Let the new normal be N2.

3. Change in Angle of Incidence:

* The incident ray remains fixed.

* The angle between the fixed incident ray and the new normal (N2) is the new angle of incidence, i2.

* Since N2 has rotated by θ_m relative to N1, the angle between the incident ray and the normal changes by θ_m.

* So, i2 = i1 ± θ_m (depending on the direction of rotation).

4. Change in Angle of Reflection:

* According to the law of reflection, the new angle of reflection r2 = i2.

* The new reflected ray, R2, makes an angle r2 with the new normal N2.

5. Angle of Rotation of the Reflected Ray:

* Consider the angles relative to the original position of the normal N1.

* Initially, the incident ray is at an angle i1 from N1, and the reflected ray R1 is at an angle i1 from N1 on the opposite side. The total angle swept from the incident ray to the reflected ray through the normal is 2*i1.

* When the mirror rotates by θ_m, the normal effectively moves by θ_m.

* Let's assume the mirror rotates in a direction that increases the angle of incidence.

* The normal rotates by θ_m.

* The incident ray's angle relative to the new normal becomes (i1 + θ_m).

* The new reflected ray will be at an angle (i1 + θ_m) from the new normal, on the other side.

* The angle between the initial incident ray and the *initial* normal is i1.

* The angle between the initial incident ray and the *new* normal is (i1 + θ_m).

* The initial reflected ray (R1) makes an angle 2*i1 with the incident ray. (More precisely, the angle from incident ray direction to reflected ray direction, measured around the point of incidence).

* The new reflected ray (R2) makes an angle 2*(i1 + θ_m) with the incident ray.

* Therefore, the rotation of the reflected ray is (angle of R2 from incident ray) - (angle of R1 from incident ray) = 2*(i1 + θ_m) - 2*i1 = 2*θ_m.

* This is a general result: When a plane mirror is rotated through an angle θ, the reflected ray rotates through an angle 2θ in the same direction as the mirror's rotation, provided the incident ray remains fixed.

6. Calculation:

* Angle of mirror rotation (θ_m) = 10°.

* Angle of reflected ray rotation = 2 * θ_m = 2 * 10° = 20°.

The initial angle of incidence (35°) is extraneous information for calculating the rotation of the reflected ray.

The final answer is 20°

Correct Answer: A. Islam

Correct Answer: A. 210

Correct Answer: D. 20,000 plants

Correct Answer: D. ?tendency to become joint-stock companies

Correct Answer: D. the perpendicular bisector of PQ

Correct Answer: D) Tehran

Explanation

The correct answer to this question is Option D, Tehran. Tehran is the largest and capital city of Iran. It is located in the north-central part of Iran and has a population of over 8 million people. Tehran is the political, economic and cultural center of Iran, and it is home to many universities, museums and historical sites.

It is important to know the capital cities of different countries, as it helps to understand the geography and politics of the world. For example, knowing that Tehran is the capital city of Iran can help you understand where the Iranian government is located and what the political climate is like in Iran.

In summary, the capital city of Iran is Tehran, and it is the correct answer to this question.

Correct Answer: A. totalitariansim

Explanation

Totalitarianism is a political concept of a mode of government that prohibits opposition parties, restricts individual opposition to the state and its claims, and exercises an extremely high degree of control over public and private life.

Correct Answer: A. blood plasma and the red blood cells are isotonic